title: Meta-analyses of etiologic studies should account for the underlying biologic mechanisms.
authors: Department of Cancer Epidemiology and Prevention Research, Cancer Control Alberta, Alberta Health Services, 1820 Richmond Road, S.W. Calgary, AB, T2T 5C7, Canada, heather.neilson@albertahealthservices.ca.
authors: Heather K
authors: HK
authors: Neilson
mesh_terms: D001943:Breast Neoplasms / Q000453:epidemiology*; D015444:Exercise; D005260:Female; D006801:Humans