The significance of raised serum IgA in ankylosing spondylitis with IgA nephropathy.
D005922:Glomerulonephritis, IGA / Q000276:immunology*; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis*; D013167:Spondylitis, Ankylosing / Q000209:etiology / Q000276:immunology*
D007070:Immunoglobulin A