Women's Health Weekly
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Breast Cancer
More research needed to clarify etiologic role of hormone-receptor expression
December 30th, 2004
A review of the medical literature led researchers with the U.S. National Cancer Institute (NCI) to conclude that more research is needed to understand the etiologic role of estrogen receptor and/or progesterone receptor expression in breast cancer. "Breast cancers classified by estrogen receptor (ER) and/or progesterone receptor (PR) expression have different clinical, pathologic, and molecular features. We examined existing evidence from the epidemiologic literature as to whether breast cancers stratified by hormone receptor status are also etiologically distinct diseases," said M.D. Althuis and colleagues. "Despite limited statistical power and...
Source: Women's Health Weekly (2004-12-30)
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