FDAnews
www.fdanews.com/articles/131233-pfizer-hormones-almost-double-breast-cancer-death-risk-in-us-research

Pfizer Hormones Almost Double Breast Cancer Death Risk in US Research

October 20, 2010
Pfizer Inc.’s Prempro, a hormone once used by millions of women to ease menopause symptoms, almost doubled the death risk from breast cancer, a U.S. study found.
Bloomberg