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About Otis Brawley
Otis Webb Brawley, M.D., is the chief medical officer of the American Cancer Society, responsible for promoting cancer prevention, early detection, and high-quality treatment through cancer research and education.
Some two-thirds of cancer are caused by lifestyle choices, says Otis Brawley, chief medical offer of the American Cancer Society. But routine screening, which causes over-diagnosing, is not the answer.