Rheumatoid arthritis and malabsorption.
D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000473:pathology; D006801:Humans; D007583:Jejunum / Q000473:pathology; D008286:Malabsorption Syndromes / Q000209:etiology* / Q000473:pathology; D008854:Microscopy, Electron