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More bad news for smokers.


There is new evidence that eloquently illuminates the dangers of smoking, especially by those persons with relatives who have lung cancer. Scientists have long believed that a person's predisposition to lung cancer was attributable to a combination of both genetic and environmental factors. In a recent study published in the Journal of the National Cancer Institute, scientists located a gene that, as in the inheritance of hair or eye color, passes a predisposition to lung cancer from parent to child. For example, at age 50 a smoker with the gene is 325 times more likely to get lung cancer than a person without it. More revealing is the fact that smoking can be linked as the primary or major contributing factor of 69 percent of all cases of lung cancer. With these kinds of odd, only a fool would keep smoking.
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Title Annotation:genetic link
Publication:Medical Update
Date:Sep 1, 1990
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