title: Warfarin use in Medicare patients with atrial fibrillation.
authors.forename: D W
authors.initials: DW
authors.lastname: Bratzler
authors.forename: C K
authors.initials: CK
authors.lastname: Murry
authors.forename: L L
authors.initials: LL
authors.lastname: Moore
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000925:Anticoagulants / Q000627:therapeutic use*; D001281:Atrial Fibrillation / Q000188:drug therapy*; D006801:Humans; D006278:Medicare; D012189:Retrospective Studies; D014481:United States; D014859:Warfarin / Q000627:therapeutic use*
chemical_list: D000925:Anticoagulants; D014859:Warfarin