title: [Seronegative rheumatoid arthritis in childhood. Laboratory diagnosis and case reports].
mesh_terms: D000293:Adolescent; D000888:Antibodies, Anti-Idiotypic / Q000032:analysis; D000974:Antibodies, Antinuclear / Q000032:analysis; D001171:Arthritis, Juvenile / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000276:immunology; D001323:Autoantibodies / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D003165:Complement System Proteins / Q000032:analysis; D005260:Female; D006680:HLA Antigens / Q000032:analysis; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D008297:Male; D011859:Radiography; D012217:Rheumatoid Factor / Q000032:analysis; D013582:Synovial Fluid / Q000166:cytology
chemical_list: D000888:Antibodies, Anti-Idiotypic; D000974:Antibodies, Antinuclear; D001323:Autoantibodies; D006680:HLA Antigens; D007136:Immunoglobulins; D003165:Complement System Proteins; D012217:Rheumatoid Factor
vernacular_title: Artrite reumatoide sieronegativa nell'infanzia. Diagnosi di laboratorio e casistica.