title: Seronegative spondyloarthropathies and IgA glomerulonephritis: a report of four cases and a review of the literature.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000150:complications* / Q000276:immunology; D016918:Arthritis, Reactive / Q000150:complications / Q000276:immunology; D003093:Colitis, Ulcerative / Q000150:complications / Q000276:immunology; D005922:Glomerulonephritis, IGA / Q000150:complications* / Q000276:immunology; D006680:HLA Antigens; D015796:HLA-B27 Antigen; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D008297:Male; D011565:Psoriasis / Q000150:complications / Q000276:immunology; D013166:Spondylitis / Q000150:complications / Q000276:immunology; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000276:immunology
chemical_list: D006680:HLA Antigens; D015796:HLA-B27 Antigen; D007070:Immunoglobulin A