Estrogen's Role in Breast Cancer Can Fluctuate, Georgetown University Study Finds
4/15/2011 7:27:20 AM
FRIDAY, April 15 (HealthDay News) -- Is estrogen breast cancer's friend or foe? A recent study in the Journal of the American Medical Association, which analyzed data from the massive Women's Health Initiative, suggested the latter when it found a reduced risk of breast cancer in women who had been on short-term estrogen therapy.
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