Two-thirds of cancer cases are "bad luck," study says

Two-thirds of all adult cancer cases are primarily the result of "bad luck," according to the authors of a new study appearing in Friday's edition of the journal Science . Dr. Bert Vogelstein, the Clayton Professor of Oncology at the Johns Hopkins University School of Medicine , and Dr. Cristian Tomasetti, an assistant professor of oncology at the Johns Hopkins University School of Medicine and Bloomberg School of Public Health, developed a statistical model that measured the proportion of cancer incidence across many different tissue types.

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