title: Preliminary reports: when is the evidence strong enough to change practice?
authors.forename: J C
authors.initials: JC
authors.lastname: Bailar
mesh_terms: D004812:Epidemiologic Methods; D015914:Estrogen Replacement Therapy; D005260:Female; D006801:Humans; D009203:Myocardial Infarction / Q000453:epidemiology / Q000209:etiology*; D012907:Smoking / Q000009:adverse effects*