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390487 02: (FILE PHOTO) Close up of cancer cells in the cervix. Cancer of the uterine cervix, the portion of the uterus that is attached to the top of the vagina. (Photo by American Cancer Society/Getty Images)
390487 02: (FILE PHOTO) Close up of cancer cells in the cervix. Cancer of the uterine cervix, the portion of the uterus that is attached to the top of the vagina. (Photo by American Cancer Society/Getty Images)

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    Study: Lifestyle has a bigger role in causing cancer

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Study: Lifestyle has a bigger role in causing cancer

New research indicates that certain environmental and lifestyle factors may have a bigger role in causing cancer. CNN's Dr. Sanjay Gupta explains.

Study: Lifestyle has a bigger role in causing cancer

New research indicates that certain environmental and lifestyle factors may have a bigger role in causing cancer. CNN's Dr. Sanjay Gupta explains.