title: [Juvenile rheumatoid arthritis. Epidemiology and pathogenesis].
mesh_terms: D000293:Adolescent; D001171:Arthritis, Juvenile / Q000209:etiology* / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male