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Figures
Figure 1. Distribution of treatment among 65 patients with atrial fibrillation who switched treatment groups during the observation time (blended-treatment group).
Figure 2. Efficacy of warfarin in preventing stroke in patients with atrial fibrillation in clinical trials versus actual practice. AFASAK = Atrial Fibrillation, Aspirin, Anticoagulation Study; ([5]) BAATAF = Boston Area Anticoagulation Trial for Atrial Fibrillation Study; ([6]) CAFA = Canadian Atrial Fibrillation Anticoagulation Study; ([7]) SPAF = Stroke Prevention in Atrial Fibrillation Study; ([4]) SPINAF = Veterans Affairs Stroke Prevention in Nonrheumatic Atrial Fibrillation Study; ([8]) combined trials: AFASAK + BAATAF + CAFA + SPAF + SPINAF; actual practice: present study.