Occult blood in faeces after administration of aspirin.
D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000628:therapy*; D001241:Aspirin / Q000009:adverse effects*; D005243:Feces; D006471:Gastrointestinal Hemorrhage; D006470:Hemorrhage; D006801:Humans; D009780:Occult Blood; D013270:Stomach; D013272:Stomach Diseases
D001241:Aspirin
ACETYLSALICYLIC ACID/injurious effects; ARTHRITIS, RHEUMATOID/therapy; STOMACH/hemorrhage