A population survey of rheumatoid arthritis. Epidemiological aspects of the syndrome, its pattern, and effect on gainful employment.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000401:mortality; D004185:Disability Evaluation; D006801:Humans; D011859:Radiography