title: Commentary: the hormone replacement-coronary heart disease conundrum: is this the death of observational epidemiology?
authors.affiliation: Department of Social Medicine, University of Bristol, UK. d.a.lawlor@bristol.ac.uk
authors.forename: Debbie A
authors.initials: DA
authors.lastname: Lawlor
authors.forename: George
authors.initials: G
authors.lastname: Davey Smith
authors.forename: Shah
authors.initials: S
authors.lastname: Ebrahim
mesh_terms: D000367:Age Factors; D003327:Coronary Disease / Q000139:chemically induced / Q000517:prevention & control*; D015340:Epidemiologic Research Design; D005260:Female; D020249:Hormone Replacement Therapy / Q000009:adverse effects; D006801:Humans; D015201:Meta-Analysis as Topic; D016032:Randomized Controlled Trials as Topic; D012307:Risk Factors; D012959:Socioeconomic Factors