title: Systemic-onset juvenile idiopathic arthritis and HLA-B27 juvenile-onset undifferentiated spondyloarthritis in the same patient.
authors.forename: Angela
authors.initials: A
authors.lastname: Padula
authors.forename: Maria Stefania
authors.initials: MS
authors.lastname: Cutro
authors.forename: Angelo
authors.initials: A
authors.lastname: Nigro
authors.forename: Salvatore
authors.initials: S
authors.lastname: D'Angelo
authors.forename: Ignazio
authors.initials: I
authors.lastname: Olivieri
mesh_terms: D000293:Adolescent; D017668:Age of Onset; D001171:Arthritis, Juvenile / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy / Q000276:immunology; D002648:Child; D018450:Disease Progression; D015796:HLA-B27 Antigen / Q000276:immunology*; D006650:Histocompatibility Testing; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use; D011237:Predictive Value of Tests; D025241:Spondylarthritis / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy / Q000276:immunology; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D015796:HLA-B27 Antigen; D007166:Immunosuppressive Agents