Rheumatoid factors in a rural population.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D001172:Arthritis, Rheumatoid / Q000453:epidemiology*; D004739:England; D004812:Epidemiologic Methods; D005260:Female; D006386:Hemagglutination Tests; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000209:etiology; D007841:Latex Fixation Tests; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000453:epidemiology; D012217:Rheumatoid Factor; D012423:Rural Health; D012723:Sex
D012217:Rheumatoid Factor