title: ACTIVE-W: warfarin beats clopidogrel/aspirin in atrial fibrillation.
mesh_terms: D000925:Anticoagulants / Q000627:therapeutic use; D001241:Aspirin / Q000627:therapeutic use*; D001281:Atrial Fibrillation / Q000188:drug therapy* / Q000517:prevention & control*; D000077144:Clopidogrel; D003007:Clopidol / Q000627:therapeutic use*; D004359:Drug Therapy, Combination; D006801:Humans; D013988:Ticlopidine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D014859:Warfarin / Q000627:therapeutic use*
chemical_list: D000925:Anticoagulants; D014859:Warfarin; D003007:Clopidol; D000077144:Clopidogrel; D013988:Ticlopidine; D001241:Aspirin