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Global Research Publications on Hepatitis C from SCOPUS Database (2009-2018): A Scientometric Study.

Introduction

A disease is the biggest task to solve in this world to survive for the human begins, day by day the new infections are occupying in the human body. Diseases won't see the human to affect by global, regional, and national age-sex, etc., some disease is curable, some cause to death and some are unable to identify this may be due to the lack of facility available in the health. As per the 2016 data of World Health Organization 54% (i.e., more than half %) death were due to the top 10 causes of diseases worldwide., These diseases have remained in the last 15 years for leading causes of death globally and were classified into three types (i) Communicable, maternal, per natal and nutritional conditions (ii) Noncommunicable diseases and (iii) Injuries [1]. Hepatitis is one of the types of disease causes to death worldwide. Global Burden of Diseases study updated on 2015 and ranked chronic viral hepatitis and its underlying conditions, among the top 20 causes of death caused by cirrhosis and liver cancer, and it's increasing steeply from 1990 to 2015 [2].

Since 2000, global public health stakeholders have increasingly recognized viral hepatitis as a major cause of death. In 2015, WHO's Global Health Estimates [GHE] indicated that acute liver failure, cirrhosis and hepatocellular carcinoma secondary to viral hepatitis lead to more deaths, and it has been increasing worldwide than the human immunodeficiency virus [HIV], tuberculosis [TB] or malaria and also the data shows that in 2015, 29.7% of hepatitis deaths were attributable to infection with HCV [3]. According to Stedman's Medical Dictionary "Hepatitis is an inflammation of the liver, due usually to viral infection but sometimes to toxic agents. Previously endemic throughout much of the developing world, viral Hepatitis now ranks as a major public health problem in industrialized nations. The three most common type of viral Hepatitis were (A, B, and C) affects millions worldwide" [4].

Hepatitis C is a liver infection; most of them don't know the symptoms, but it causes few symptoms by the hepatitis C virus. [5] Hepatitis C found worldwide. Hepatitis C virus infection can be determined in certain populations it depends on the country, (for example people who inject drugs) and/or in general populations. [6] The World Health Organization (WHO) has stated by the year 2030 viral hepatitis will be eliminated as a public health threat. Global burden of hepatitis C virus (HCV) currently estimated at 71 million people [7]. The key recommendations and the elimination goals of WHO are to reduce new infections by 90% and HCV-related liver mortality by 65% [8].

Literature Review

Sangam et. al. (2018) [9] have examined by collecting data from PubMed and the Web of Science (WoS) for the period 1976-2015 to find out the hepatitis literature in the world and its growth. The result shows in India that the cumulative number of publications doubled in the year 2008 and the publications were significantly increased. Schmidt et. al. (2014) [10] focused on hepatitis B in his paper, he compares the research articles published in USA and Europe countries with the countries of China and Taiwan, Pubmed and ISI-Web used for research data for the period of 1971-2011. He examined that most productive supplier is the USA and the top ten ranking in most productivity authors in the field of publishing hepatitis B articles worldwide is China and Taiwan. Miri, Raoofi and Heidari (2012) [11] carried out the citation analysis of Hepatitis monthly Journal, for his bibliometric study he used three databases (Web of Science, Google Scholar, and Scopus) among these three databases there is showing difference in the Impact Factor and also stated that publications of all articles never succeed to record.

Trapero Marugan et. al. (2002) [12], analyzed Spanish hospitals about the hepatitis C virus publications for the period 1980 to 2002. He used the Medline database to collect the data, he stated in his analysis that in 1980 no articles were published and in 1998 there were 121 articles published, and it decreased to 36 in 2002, while comparing to international journals articles Spanish journals published fewer articles related to hepatitis C Virus. Siva, Vivekanandhan and Manickraj (2018) [13] analyze the digital library research publications in a scientometric analysis, which indexed in SCOPUS database, the period is between 2008 and 2017 with 10345 publications. The average degree of collaboration is 0.78, the relative growth rate is decreasing trend and doubling time is increasing trend. The United States ranked first with 2650 (25.62%) publications, and Giles C.L. stands with highest of 59 (0.57%) publications with 643(1.35%) citations and the h-index is 15.

Objective of the study

The main objectives of the studies are,

* To study the year wise growth of research publication in Hepatitis C.

* To analysis the relative growth rate and doubling time

* To study the type of document in hepatitis C research publications

* To examine the Language wise hepatitis C research publications

* To analysis the top 15 most productive countries, share and RCI

* To identify the top 15 most productive authors in Hepatitis C

* To examine the top 15 Journals and Organizations contributions.

Methodology

The Hepatitis C research publications are identified during the period from 2009 to 2018 were determined using the Scopus database. Using the following search Keyword (TITLE-ABS-KEY("hepatitis C") AND PUBYEAR > 2008 AND PUBYEAR < 2019. h-index and relative citation index are calculated for this study. The data was collected for this study is 20.02.2019. During the ten year study period 59926 research publications are identified and analyses the relative growth rate and doubling time of the study, document type and top 15 countries, authors, journals and institutions.

Data Analysis and Interpretations

Year Wise Growth of Publications

Table 1 shows that year wise growth of research publications in hepatitis C during the ten year study period between 2009 and 2018 with 59926 research publications. From the study, it identified that the maximum of 6547 (10.93%) publications in the year 2015, followed by 6482 (10.82%) publications in the year 2014 and 6302

(10.52%) publications in 2016. The average research publications for the ten year study period are 5992 publications. Last ten years hepatitis C studies are identified from 8.76% to 10.93% of research contributions.

Relative Growth Rate and Doubling Time

Relative Growth Rate (RGR)

The most important features of science and technology in recent years are calculated by the rate of growth.

Scientific growth involved not only increase in the man power and financial investment. The relative growth rates are identified by the increase in the number of publications per unit of time. The mean relative growth rate over the particular period of an interval can be calculated in the following formula developed by Mahapatra (1985) [14]

R(a) = (W2 - W1) / (T2 - T1)

Where, R(a) = RGR = the mean relative growth rate over the specific period of interval

W1 = the logarithm of the beginning number of publications/pages

W2= the logarithm of ending number of publications/pages after a specific period of interval

T2 - T1 = the unit difference between the beginning time and the ending time.

Here the year can think about the unit of time. The relative growth rate for both publications and pages are calculated separately.

R(a) = Relative growth rate per unit of publications per unit of time

R(p) = Relative growth rate per unit of pages per unit of time

Doubling Time [Dt]

The doubling time is the time taken for the doubling of the number of records published within a stipulated period. The doubling time is calculated from the relative growth rate (the difference between the logarithms of beginning and end of the year from the study), and the natural logarithm number is used, the difference has a value of 0.693. Thus the corresponding doubling time for each specific period of interval and both publications and pages can be calculated by the following formula,

Dt = 0.693/ R(a)

From table 2, shows that RGR has been decreasing trend from (0.71) in the year 2009 to (0.10) in the year 2018.

Correspondingly the doubling time (Dt) has been increasing from 0.98 in the year 2010 to 7.28 in the year 2018.

Type of Document in Hepatitis C Research Publications

During the ten year study period on hepatitis C, research publications are identified from table 3. From the table 3 maximum of 41141 (68.65%) research publications are contributed by the article, followed by 8850 (14.77%) research publications are reviewed, 3310 (5.52%) research publications are a letter, etc.

This study confirmed that more than 83% of publications are contributed by article and review. From this study, it is identified that Less than 2% of contributions are conference paper, book chapter, short survey, erratum, book, conference review and retracted.

Language wise Hepatitis C Research Publications

Language-wise research publications are identified in two five years block. From table 4, it is identified that 29409 research publications are contributed in the first block years of 2009-2013. Out of that, the maximum of 26363 publications are the English language, followed by 489 publications are Spanish, 438 publications are Chinese, etc. From the 2nd block years of 2014-2019 identified that 31335 research publications. Out of that, the maximum of 29383 publications are the English language, followed by 324 publications are German, 304 publications are Spanish, etc. From the overall ten year study period identified that maximum of 55746 (91.77%)research publications are the English language, followed by 793 (1,31%) publications are Spanish, 722 (1.19%)publications are German, etc.

Global Publication Share and Citations of Top 15 Most Productive Countries

Relative citation index (RCI) was developed by the Institute of Scientific Information (now Thomson Reuters, USA) and examined the impact of different countries and institutions in the field of Pollution Control research publications. The scientific impact of leading countries is analyzed by using two relative indicators, namely citations per paper (CPP) and relative citations index (RCI). Citations per paper (CPP) is a relative indicator computed as the average number of citation per paper. It has been broadly used into the bibliometric studies as it normalizes a large difference in the volumes of publications among most productive countries, institutions, and authors. To measure both, influence and visibility of country research in global wise, the following formula has been used by Bharvi Dutt and Khaiser Nikam (2016) [15]

RCI= A Country share of the World Citations / A Country share of the World Publications

Here

RCI = 1 indicates that a country's citation rate is equal to the world citation rate

RCI > 1 indicates that a country's citation rate is greater than the world citation rate

RCI < 1 indicates that a country's citation rate is lower than the world citation rate

CPP=Total Citations /Total Publications

Table 5 shows that block year wise top 15 countries research publications, share, citations, CPP and RCI for hepatitis C research publications during 2009-18. The publications contribution of top 15 most productive countries and others in hepatitis C was identified during 2009-18, which increased from 1st block year 2009-13 with 28989 publications to 2nd block year 2014-2018 with 30937 publications. Individually, the global publication share of these 15 countries varied from 1.54% to 23.10% during 2009-18, with highest contribution share of 18160 (23.10%) publications with 460751 citations, CPP is 25.37 and RCI is 2.12 by the United States, followed by Italy 4662 (5.93%) publications with 102637 citations, CPP is 22.02 and RCI is 1.81, Japan 4485(5.70%) publications with 73018 citations, CPP is 16.28 and RCI is 1.36, China 3832(4.87%) publications with 54146 citations, CPP is 14.13 and RCI is 1.18 etc.

During the study period the global publications share has been increased from 1st block years to 2nd block years by 1.23% in China, Egypt (0.59%), India (0.52%), etc. And the same time decreased by 1.22% by Japan, (0.92%) by France and (0.74%) by the United States. The top 15 most productive countries relative citation index are more than the world average of 1 expect Egypt.

From the table 6, identified that Zeuzem S., Germany contributed a maximum of 355 (11.56%) publications, followed by Alavian, S.M., Iran contributed 231(7.52%), Chayama K., Japan is 224 (7.29%). Based on the citation contribution maximum of Zeuzem S., Germany 28757(23.95%) citations, citation per paper is 81.01, h-index is 73, and relative citation index is 2.07, followed by Berg T. 10375 (8.64%) citations with CPP is 51.11, h-index is 42, RCI is 1.31. Manns M.P., Germany 9654(8.04%) citations with Cpp is 49.26, h-index is 42, RCI is 1.26. The RCI of top 15 authors is identified that 7 authors are greater than the world average and the remaining 8 authors are below the world average.

Top 15 Most Productive Journals

Top 15 most productive journals identified in table 7. During the study period maximum of contribution in the journal Plos One, United States is 1443 (2.39%) publications, followed by Hepatology; the United States is 1402 (2.35%) publications, Journal of Hepatology, Netherland is 1204 (2.01%).

Top 15 Institutions Contribution in Hepatitis C

During the study period top 15 institutions contribution is identified from table 8, From the study maximum of contribution by INSERM, France is 1826 (17.35%) publications with 55515 (14.91%) citations, 30.40 CPP, h-index is 104, RCI is 0.86., followed by AP-HP Assistance Publique-Hopitaux de Paris, France is 806(7.66%) publications with 24306 (6.53%) citations, 30.16 CPP, h-index is 80, RCI is 0.85. The third place is the University of California, San Francisco; the United States is 790(7.51%) publications with 26624 (7.15%) citations, 33.70CPP, h-index is 71, RCI is 0.95. The Relative Citation Index of top 15 institutions identified in that 8 institutions are greater than the world average and remaining 7 institutions are below the world average.

Major Findings and Conclusion

* There are 59926 research publications are identified in hepatitis C during the study period, and maximum of 6547 (10.93%) publications are contributed in the year 2015.

* The RGR has been decreasing trend from (0.71) in 2009 to (0.10) in 2018. Correspondingly the doubling time (Dt) has been increasing from 0.98 in 2010 to 7.28 in 2018.

* This study identified that a maximum of 41141 (68.65%) research publications are contributed by article and 55746 (91.77%)research publications are the English language.

* From this study highest contribution share of 18160 (23.10%) publications with 460751 citations, CPP is 25.37 and RCI is 2.12 by the United States and expect Egypt top 15 most productive countries relative citation index is more than the world average.

* During the study it is identified that Zeuzem S., Germany contributed a maximum of 355 (11.56%) publications with 28757(23.95%) citations, citation per paper is 81.01, h-index is 73, and relative citation index is 2.07.

* During the study period maximum of 1443 (2.39%) publications in the journal of Plos One and the institution INSERM, France is 1826 (17.35%) publications with 55515 (14.91%) citations, 30.40 CPP, h-index is 104 and RCI is 0.86.

* The overall ten year study period identified that the contributions of hepatitis C from SCOPUS database is average growth. The disease is the biggest task to solve in this world to survive for the human begins, day by day the new infections are occupying in the human body. Hepatitis C is one of the types of disease that causes death worldwide. So this study concludes that must increase in the field of hepatitis C research in the world wild.

Reference

[1.] https://www.who.int/news-room/fact-sheets/detail/the-top-10-causes-of-death. Accessed on 10.02.2019.

[2.] GBD 2016 Causes of Death Collaborators. Global, regional and national age-sex specific mortality for 264 causes of death, 1980-2016: a systematic analysis for the Global Burden of Disease Study 2016. Lancet. 2017; 390 (10100):1151-210.

[3.] Global Health Estimates 2015: Deaths by Cause, Age, Sex, by Country and by Region, 2000-2015. [Internet]. 2016. http://www.who.int/healthinfo/global_burden_disease/en/. Accessed on 16.02.2019.

[4.] Stedman. (2000). Stedman's Medical Dictionary. 27th ed. Baltimore: Lippincott, p. 808.

[5.] https://www.webmd.com/hepatitis/digestive-diseases-hepatitis-c#1 Accessed on 10.02.2019

[6.] https://www.who.int/hepatitis/publications/global-hepatitis-report2017/en/ Accessed on 10.02.2019

[7.] Polaris Observatory HCV Collaborators (2017). Global prevalence and genotype distribution of hepatitis C virus infection in 2015: a modelling study. Lancet Gastroenterol Hepatol, 2: 161- 176.

[8.] World Health Organization 2017. Global Hepatitis Report 2017. Geneva Available at:www.who.int/hepatitis/publications/global-hepatitis-report2017/en/ accessed on 15.02.2019.

[9.] S. L. Sangam, Uma B. Arali, C. G. Patil (2018). Growth of the hepatitis literature over the period 1976-2015: What can the relative priority index teach us?, Ronald Rousseau, Scientometrics 115(1):351-368

[10.] Schmidt S et al. (2014). Hepatitis B: global scientific development from a critical point of view, Journal of Viral Hepatitis, 21(11): 786-793, https://doi.org/10.1111/jvh.12205

[11.] Miri, S.M., Raoofi, A., Heidari, Z. (2012). Citation Analysis of Hepatitis Monthly by Journal Citation Report (ISI), Google Scholar and Scopus (Review). Hepatitis Monthly, 12(9):Article number e7441 e7441,

[12.] Trapero Marugan, M. et al. (2004). Spanish scientific publications on hepatitis C virus. A Medline study (1980-2002), Gastroenterologia y Hepatologia, 27(7): 397-402.

[13.] Siva N, Vivekanandan S and Manickaraj J. (2018). Scientometric Assessment of Digital Library Research Publications during 2008-2017 using SCOPUS Database. Research Review International Journal of Multidisciplinary, 3(10): 865-870.

[14.] Mahapatra, M. (1985). On the validity of the theory of exponential growth of scientific literature. In 15th IASLIC conference proceedings, Bangalore, 61-70.

[15.] Bharvi, D. and Khaiser, N. (2016). Scientometric analysis of global solar cell research. Annals of Library and Information Studies, 63, 31-41

[16.] Vivekanandhan, S., Sivasamy, K. and Prabhakar, S. (2016). Analysis of Pollution Control Research Output from Scopus Database (1985-2014): A Scientometric Study. LIS Today, 3(1-2), 32-41.

[17.] Rajendran P., Jeyashankar R. and Elango B. (2011). Research Trends in Indian Journal of Marine Sciences (2001- 2010): A scientometric study. International Journal of Digital Library Services, 2(4), 4250.

[18.] Vivekanandhan, S., Sivasamy, K. and Prabhakar, S. (2016). Publications and Citations Analysis of Pollution Control Research Output from SCOPUS Database: A Scientometrics Analysis. International Journal of Next Generation Library and Technologies, 2(3), 1-13.

[19.] Elango, B., Rajendran, P., & Manickraj, J. (2013). Tribology research output in BRIC countries: A scientometric dimension. Library Philosophy and Practice. http://digitalcommons.unl.edu/libphilprac/935

* Dr. N. Siva * Dr. S. Vivekanandhan ** Dr. P. Rajendran

* Assistant Librarian, SRM Institute of Science and Technology, Kattangulathur, Kancheepuram, India

** University Librarian, SRM Institute of Science and Technology, Kattangulathur, Kancheepuram, India

siva.n@ktr.srmuniv.ac.in, vivekanandan.s@ktr.srmuniv.ac.in, periyaswamyrajendran@gmail.com
Table 1 Year wise growth of Publications in hepatitis C

S. No    Year   Publications     %      Cum.    Cum. %

1        2009       5251        8.76    5251     8.76
2        2010       5396        9.00    10647   17.77
3        2011       5886        9.82    16533   27.59
4        2012       6155       10.27    22688   37.86
5        2013       6301       10.51    28989   48.38
6        2014       6482       10.82    35471   59.19
7        2015       6547       10.93    42018   70.12
8        2016       6302       10.52    48320   80.64
9        2017       6168       10.29    54488   90.93
10       2018       5438        9.07    59926   100.01
Total              59926       100.00

Table 2 Year wise Relative Growth Rate and Doubling Time in
Hepatitis C

S.   Year   Publications   Cum.     W1      W2     RGR =
No                                                 (W2-W1)

1    2009       5251       5251    0.00    8.57       0
2    2010       5396       10647   8.57    9.27     0.71
3    2011       5886       16533   9.27    9.71     0.44
4    2012       6155       22688   9.71    10.03    0.32
5    2013       6301       28989   10.03   10.27    0.25
6    2014       6482       35471   10.27   10.48    0.20
7    2015       6547       42018   10.48   10.65    0.17
8    2016       6302       48320   10.65   10.79    0.14
9    2017       6168       54488   10.79   10.91    0.12
10   2018       5438       59926   10.91   11.00    0.10
   Total       59926

S.      Dt =
No   (0.693/RGR)

1
2       0.98
3       1.57
4       2.19
5       2.83
6       3.43
7       4.09
8       4.96
9       5.77
10      7.28

Table 3 Document Type wise Publications in Hepatitis C

S. No   Document Type       Publications     %

1       Article                41141       68.65
2       Review                  8850       14.77
3       Letter                  3310        5.52
4       Note                    2068        3.45
5       Editorial               1768        2.95
6       Conference Paper        906         1.51
7       Book Chapter            807         1.35
8       Short Survey            725         1.21
9       Erratum                 289         0.48
10      Book                     46         0.08
11      Conference Review        13         0.02
12      Retracted                3          0.01
Total                          59926       100.00

Table 4 Language wise Publications in Hepatitis C

                 Number of Publications

Language     2009-2013   2014-2018   2009-2018

English        26363       29383       55746
Spanish         489         304         793
German          398         324         722
Chinese         438         281         719
French          399         240         639
Japanese        290         258         548
Russian         203         206         409
Portuguese      127         46          173
Polish          134         32          166
Turkish         95          55          150
Czech           56          37          93
Italian         59          23          82
Hungarian       47          30          77
Croatian        49          25          74
Korean          40          18          58
Others          222         73          295
Total          29409       31335       60744

                  Share of Publications

Language     2009-2013   2014-2018   2009-2018

English        89.64       93.77       91.77
Spanish        1.66        0.97        1.31
German         1.35        1.03        1.19
Chinese        1.49        0.90        1.18
French         1.36        0.77        1.05
Japanese       0.99        0.82        0.90
Russian        0.69        0.66        0.67
Portuguese     0.43        0.15        0.28
Polish         0.46        0.10        0.27
Turkish        0.32        0.18        0.25
Czech          0.19        0.12        0.15
Italian        0.20        0.07        0.13
Hungarian      0.16        0.10        0.13
Croatian       0.17        0.08        0.12
Korean         0.14        0.06        0.10
Others         0.75        0.23        0.49
Total         100.00      100.00      100.00

Table 5 Country wise Publications in Hepatitis C

                      Number of Publications
S.
No    Country Name    2009-   2014-    2009-
                      2013    2018     2018

1     United States   8545     9615    18160
2     Italy           2252     2410     4662
3     Japan           2313     2172     4485
4     China           1533     2299     3832
5     France          1952     1879     3831
6     UnitedKingdom   1829     1980     3809
7     Germany         1790     1804     3594
8     Spain           1548     1536     3084
9     Canada          1037     1334     2371
10    Australia        904     1159     2063
11    Egypt            774     1149     1923
12    Taiwan           709     862      1571
13    India            581     896      1477
14    Brazil           659     805      1464
15    Switzerland      538     671      1209
16    Others          9405    11683    21088

Total                 28989   30937    78623

                      Share of Publications
S.
No    Country Name    2009-    2014-    2009-      TC       %
                      2013     2018     2018

1     United States   23.50    22.76    23.10    460751   48.96
2     Italy            6.19     5.70     5.93    102637   10.91
3     Japan            6.36     5.14     5.70    73018    7.76
4     China            4.22     5.44     4.87    54146    5.75
5     France           5.37     4.45     4.87    114535   12.17
6     UnitedKingdom    5.03     4.69     4.84    106002   11.26
7     Germany          4.92     4.27     4.57    107593   11.43
8     Spain            4.26     3.64     3.92    74590    7.93
9     Canada           2.85     3.16     3.02    72018    7.65
10    Australia        2.49     2.74     2.62    56138    5.97
11    Egypt            2.13     2.72     2.45    21769    2.31
12    Taiwan           1.95     2.04     2.00    31762    3.38
13    India            1.60     2.12     1.88    19325    2.05
14    Brazil           1.81     1.91     1.86    21149    2.25
15    Switzerland      1.48     1.59     1.54    47712    5.07
16    Others          25.86    27.65    26.82
Total                 100.00   100.00   100.00   941034

S.
No    Country Name     CPP    RCI

1     United States   25.37   2.12
2     Italy           22.02   1.84
3     Japan           16.28   1.36
4     China           14.13   1.18
5     France          29.90   2.5
6     UnitedKingdom   27.83   2.33
7     Germany         29.94   2.5
8     Spain           24.19   2.02
9     Canada          30.37   2.54
10    Australia       27.21   2.27
11    Egypt           11.32   0.95

12    Taiwan          20.22   1.69
13    India           13.08   1.09
14    Brazil          14.45   1.21
15    Switzerland     39.46   3.3
16    Others
Total

Table 6 Top 15 Authors Contributions in Hepatitis C

S.    Author           Country     Publications     %      Total
No                                                        Citations

1     Zeuzem, S.       Germany         355        11.56     28757
2     Alavian, S.M.    Iran            231        7.52      2546
3     Chayama, K.      Japan           224        7.29      6159
4     Dore, G.J.       Australia       207        6.74      9783
5     Pol, S.          France          205        6.68      9554
6     Berg, T.         Germany         203        6.61      10375
7     Sarrazin, C.     Germany         198        6.45      6398
8     Chung, R.T.      USA             196        6.38      6851
9     Manns, M.P.      Germany         196        6.38      9654
10    Soriano, V.      Spain           191        6.22      3797
11    Colombo, M.      Italy           185        6.02      1116
12    Grebely, J.      Australia       184        5.99      5764
13    Wedemeyer, H.    Germany         174        5.67      7246
14    Forns, X.        Spain           165        5.37      6828
15    Younossi, Z.M.   USA             157        5.11      5243

S.    Author             %      CPP     h-     RCI
No                                     Index

1     Zeuzem, S.       23.95   81.01    73     2.07
2     Alavian, S.M.    2.12    11.02    26     0.28
3     Chayama, K.      5.13    27.50    38     0.70
4     Dore, G.J.       8.15    47.26    49     1.21
5     Pol, S.          7.96    46.60    45     1.19
6     Berg, T.         8.64    51.11    42     1.31
7     Sarrazin, C.     5.33    32.31    41     0.83
8     Chung, R.T.      5.71    34.95    45     0.89
9     Manns, M.P.      8.04    49.26    42     1.26
10    Soriano, V.      3.16    19.88    32     0.51
11    Colombo, M.      0.93    6.03     35     0.15
12    Grebely, J.      4.80    31.33    39     0.80
13    Wedemeyer, H.    6.03    41.64    42     1.07
14    Forns, X.        5.69    41.38    38     1.06
15    Younossi, Z.M.   4.37    33.39    33     0.85

Table 7 Top 15 Journals Contributions in Hepatitis C

                                                 No. of Publications
Name of the Journal                Country
                                                2009-   2014-    2009-
                                                2013     2018     2018

Plos One                        United States    563     880      1443
Hepatology                      United States    783     619      1402
Journal Of Hepatology            Netherland      620     584      1204
Journal Of Viral Hepatitis           UK          470     476      946
World Jl of Gastroenterology        China        329     450      779
Liver International                  UK          310     420      730
Gastroenterology                     UK          315     264      579
Journal Of Virology             United States    323     255      578
Transplantation Proceedings     United States    276     203      479
Journal of Medical Virology     United States    238     226      464
Hepatitis Monthly                Netherland      268     185      453
Hepatology Research                  UK          207     239      446
Alimentary Pharmacology &            UK          142     274      416
Therapeutics
Clinical Infectious Diseases    United States    172     241      413
Liver Transplantation           United States    261     152      413
Others                                          23712   25469    49181
Total World Publications                        28989   30937    59926

                                 Share of Publications
Name of the Journal                                       Impact
                                2009-   2014-    2009-    Factor
                                2013     2018     2018    (2017)

Plos One                        1.94     2.84     2.39     2.766
Hepatology                      2.70     2.00     2.35    14.049
Journal Of Hepatology           2.14     1.89     2.01    15.040
Journal Of Viral Hepatitis      1.62     1.54     1.58     4.237
World Jl of Gastroenterology    1.13     1.45     1.29     3.300
Liver International             1.07     1.36     1.21     4.500
Gastroenterology                1.09     0.85     0.97    20.877
Journal Of Virology             1.11     0.82     0.97     4.663
Transplantation Proceedings     0.95     0.66     0.80     0.806
Journal of Medical Virology     0.82     0.73     0.78     1.988
Hepatitis Monthly               0.92     0.60     0.76     1.810
Hepatology Research             0.71     0.77     0.74     3.418
Alimentary Pharmacology &       0.49     0.89     0.69     7.357
Therapeutics
Clinical Infectious Diseases    0.59     0.78     0.69     9.117
Liver Transplantation           0.90     0.49     0.70     3.752
Others                          81.80   82.33    82.06
Total World Publications

Table 8 Top 15 Institutions Contribution in Hepatitis C

Name of the                         Country       Pub.        %
Organizations

INSERM                              France        1826      17.35
AP-HP Assistance Publique           France         806      7.66
-Hopitaux de Paris
University of California,        United States     790      7.51
San Francisco
University of New South Wales      Australia       745      7.08
UNSW Australia
Harvard Medical School           United States     718      6.82
VA Medical Center                United States     707      6.72
National Institutes of Health,   United States     644      6.12
Bethesda
Cairo University                     Egypt         612      5.82
Massachusetts General            United States     556      5.28
Hospital
Hospital Clinic Barcelona            Spain         549      5.22
Icahn School of Medicine at      United States     548      5.21
Mount Sinai
University of Toronto               Canada         515      4.89
UniversitA Degli Studi di            Italy         511      4.86
Milano
Centers for Disease Control      United States     500      4.75
and Prevention
UCL                                   UK           495      4.70
Total                                             10522      100

Name of the                      Citation      %        CPP      h-
Organizations                                                   Index

INSERM                            55515      14.91     30.40     104
AP-HP Assistance Publique         24306      6.53      30.16     80
-Hopitaux de Paris
University of California,         26624      7.15      33.70     71
San Francisco
University of New South Wales     25116      6.75      33.71     63
UNSW Australia
Harvard Medical School            29102      7.82      40.53     78
VA Medical Center                 26477      7.11      37.45     65
National Institutes of Health,    31212      8.39      48.47     80
Bethesda
Cairo University                  11567      3.11      18.90     34
Massachusetts General             19179      5.15      34.49     70
Hospital
Hospital Clinic Barcelona         22731      6.11      41.40     62
Icahn School of Medicine at       21924      5.89      40.01     70
Mount Sinai
University of Toronto             24276      6.52      47.14     59
UniversitA Degli Studi di         12843      3.45      25.13     59
Milano
Centers for Disease Control       19112      5.13      38.22     57
and Prevention
UCL                               22232      5.97      44.91     55
Total                             372216      100      35.38

Name of the                       RCI
Organizations

INSERM                            0.86
AP-HP Assistance Publique         0.85
-Hopitaux de Paris
University of California,         0.95
San Francisco
University of New South Wales     0.95
UNSW Australia
Harvard Medical School            1.15
VA Medical Center                 1.06
National Institutes of Health,    1.37
Bethesda
Cairo University                  0.53
Massachusetts General             0.98
Hospital
Hospital Clinic Barcelona         1.17
Icahn School of Medicine at       1.13
Mount Sinai
University of Toronto             1.33
UniversitA Degli Studi di         0.71
Milano
Centers for Disease Control       1.08
and Prevention
UCL                               1.27
Total
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Author:Siva, N.; Vivekanandhan, S.; Rajendran, P.
Publication:Library Philosophy and Practice
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Geographic Code:9INDI
Date:Mar 1, 2019
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