title: [Rheumatoid arthritis].
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000145:classification / Q000175:diagnosis / Q000209:etiology; D001327:Autoimmune Diseases; D003095:Collagen Diseases; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
vernacular_title: Rheumatoide Arthritis