title: Hormone replacement therapy in epidemiologic studies and randomized clinical trials - are we checkmate?
authors.affiliation: Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA. Kmichels@rics.bwh.harvard.edu
authors.forename: Karin B
authors.initials: KB
authors.lastname: Michels
mesh_terms: D000368:Aged; D015340:Epidemiologic Research Design; D015914:Estrogen Replacement Therapy / Q000009:adverse effects; D005260:Female; D006801:Humans; D008875:Middle Aged; D016032:Randomized Controlled Trials as Topic; D014481:United States; D016387:Women's Health