title: Study: aspirin and warfarin equally effective for stroke prevention.
mesh_terms: D000925:Anticoagulants / Q000008:administration & dosage*; D000933:Antifibrinolytic Agents / Q000008:administration & dosage*; D001241:Aspirin / Q000008:administration & dosage*; D006801:Humans; D020521:Stroke / Q000517:prevention & control*; D014859:Warfarin / Q000008:administration & dosage*
chemical_list: D000925:Anticoagulants; D000933:Antifibrinolytic Agents; D014859:Warfarin; D001241:Aspirin