title: Bleeding while starting anticoagulation for thromboembolism prophylaxis in elderly patients with atrial fibrillation: from bad to worse.
authors.forename: D George
authors.initials: DG
authors.lastname: Wyse
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000925:Anticoagulants / Q000009:adverse effects*; D001281:Atrial Fibrillation / Q000150:complications* / Q000188:drug therapy; D015331:Cohort Studies; D005260:Female; D006470:Hemorrhage / Q000139:chemically induced*; D006801:Humans; D008297:Male; D017410:Practice Guidelines as Topic / Q000592:standards; D011292:Premedication / Q000009:adverse effects*; D016032:Randomized Controlled Trials as Topic; D013923:Thromboembolism / Q000188:drug therapy / Q000517:prevention & control*; D014812:Vitamin K / Q000037:antagonists & inhibitors
chemical_list: D000925:Anticoagulants; D014812:Vitamin K