title: Simultaneous occurrence of spondyloarthritis in HLA-B27-negative monozygotic twins.
authors.affiliation: Rheumatology Service, ASL BT Andria, DSS 4 Barletta , Reggio Emilia , Italy.
authors.forename: L
authors.initials: L
authors.lastname: Santo
authors.forename: I B
authors.initials: IB
authors.lastname: Santo
authors.forename: N
authors.initials: N
authors.lastname: Pipitone
mesh_terms: D000328:Adult; D004200:Diseases in Twins; D005260:Female; D015796:HLA-B27 Antigen / Q000032:analysis*; D006801:Humans; D025241:Spondylarthritis / Q000235:genetics* / Q000276:immunology; D014430:Twins, Monozygotic
chemical_list: D015796:HLA-B27 Antigen