title: The HRT story: lessons for epidemiologists.
authors.forename: George
authors.initials: G
authors.lastname: Davey Smith
mesh_terms: D015986:Confounding Factors, Epidemiologic; D003327:Coronary Disease / Q000453:epidemiology / Q000517:prevention & control*; D004812:Epidemiologic Methods; D015914:Estrogen Replacement Therapy; D005260:Female; D006801:Humans; D017698:Postmenopause