title: Commentary: hazards of studying women: the oestrogen oestrogen/progesterone dilemma.
authors.affiliation: Department of Epidemiology, University of Pittsburgh, GSPH, 130 North Bellefield Avenue, Room 550, Pittsburgh, PA 15213, USA. kullerl@edc.pitt.edu
authors.forename: Lewis H
authors.initials: LH
authors.lastname: Kuller
mesh_terms: D003327:Coronary Disease / Q000139:chemically induced / Q000517:prevention & control*; D015340:Epidemiologic Research Design; D015914:Estrogen Replacement Therapy; D004967:Estrogens / Q000008:administration & dosage; D005260:Female; D020249:Hormone Replacement Therapy / Q000009:adverse effects; D006801:Humans; D011372:Progestins / Q000008:administration & dosage; D012307:Risk Factors; D012737:Sex Factors
chemical_list: D004967:Estrogens; D011372:Progestins