title: Medical appropriateness of coronary angiograms.
authors.forename: H S
authors.initials: HS
authors.lastname: Friedman
mesh_terms: D000368:Aged; D000792:Angiography / Q000592:standards / Q000706:statistics & numerical data; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010380:Peer Review