Estrogen's Role in Breast Cancer Can Fluctuate, Georgetown University Study Finds

Published: Apr 15, 2011

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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