title: Re: "Prior to use of estrogen replacement therapy, are users healthier than nonusers?".
authors.forename: W C
authors.initials: WC
authors.lastname: Willett
mesh_terms: D003327:Coronary Disease / Q000139:chemically induced; D015914:Estrogen Replacement Therapy / Q000009:adverse effects; D005260:Female; D006304:Health Status; D006801:Humans; D012307:Risk Factors