Article
Estrogen receptor breast cancer phenotypes in the Surveillance, Epidemiology, and End Results database.
Breast cancer research and treatment - 1 Nov 2002
Anderson William F, Chatterjee Nilanjan, Ershler William B, Brawley Otis W
Abstract excerpt
BACKGROUND: Researchers question whether estrogen receptor alpha-negative (ERN) and -positive (ERP) represent different stages of one disease or different breast cancer types. OBJECTIVE: To further examine ERalpha phenotypes, we stratified incident tumor characteristics in the Surveillance, Epidemiology, and End Results (SEER) Database (n = 82,488) by ERN and ERP. METHODS: Study variables included black-white...
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