FAMILIAL AGGREGATION AND RHEUMATOID DISEASE.
D001168:Arthritis; D001172:Arthritis, Rheumatoid; D004200:Diseases in Twins; D004813:Epidemiology; D005826:Genetics, Medical; D005828:Genetics, Population; D006801:Humans; D012217:Rheumatoid Factor
D012217:Rheumatoid Factor
ARTHRITIS, RHEUMATOID; DISEASES IN TWINS; EPIDEMIOLOGY; GENETICS, HUMAN; GENETICS, POPULATION; RHEUMATOID FACTOR