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Weight gain, hormone use, and breast cancer. Relative risk (RR) of breast cancer by adult weight change and hormone use among postmenopausal women. RR was adjusted for age, height, history of benign diseases, family history of breast cancer, age at menarche, parity, age at first birth, age at menopause, and body mass index at age 18 years. From Huang and coworkers [31], with permission.
