title: [Initial forms of rheumatoid polyarthritis].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
vernacular_title: Formas de comienzo de la poliartrítis reumatóide.