title: Pathological system concept of rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000473:pathology*; D001808:Blood Vessels / Q000473:pathology; D006801:Humans; D007249:Inflammation / Q000473:pathology; D008648:Mesoderm / Q000473:pathology; D009206:Myocardium / Q000473:pathology; D009336:Necrosis; D012217:Rheumatoid Factor / Q000032:analysis
chemical_list: D012217:Rheumatoid Factor