Warfarin safety.
D000925:Anticoagulants / Q000506:poisoning*; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced*; D006801:Humans; D008508:Medication Errors / Q000517:prevention & control*; D014859:Warfarin / Q000506:poisoning*
D000925:Anticoagulants; D014859:Warfarin