title: Ruling out coronary heart disease in primary care: external validation of a clinical prediction rule.
authors.forename: Dewi
authors.initials: D
authors.lastname: Djasmo
authors.forename: Michael
authors.initials: M
authors.lastname: Echteld
authors.forename: Leo
authors.initials: L
authors.lastname: Spee
mesh_terms: D002637:Chest Pain / Q000209:etiology*; D003327:Coronary Disease / Q000175:diagnosis*; D003661:Decision Support Techniques; D005260:Female; D006801:Humans; D008297:Male