Polyarthritis in Western Nigeria. I. Rheumatoid arthritis.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000097:blood / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D006452:Hemoglobinometry; D006801:Humans; D008297:Male; D008875:Middle Aged; D009549:Nigeria; D011859:Radiography; D012217:Rheumatoid Factor; D012459:Salicylates / Q000627:therapeutic use; D013582:Synovial Fluid / Q000166:cytology; D014527:Uric Acid / Q000097:blood; D005719:gamma-Globulins
D012459:Salicylates; D005719:gamma-Globulins; D014527:Uric Acid; D012217:Rheumatoid Factor