title: Systemic rheumatoid vasculitis: a clinical and laboratory study of 50 cases.
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications*; D001706:Biopsy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012007:Rectum; D012008:Recurrence; D014657:Vasculitis / Q000150:complications / Q000188:drug therapy / Q000276:immunology / Q000473:pathology