1Fiore LD. Anticoagulation:Risk and benefits in atrial fibrillation[J]. Geriatrics,1996,51(6):22-31.
2Stroke Prevention in Atrial Fibrillation Investigation:Rask factors for stroke and efficacy of antithrombombotic theapy in artrial fibrillation:analysis of pooled data from five randomized controlled trials[J]. Arch Intem Med, 1999,154:144-1457.