title: Autoantibodies in systemic vasculitis.
authors.affiliation: Rheumatology Division, Department of Internal Medicine, Universidade Federal de São Paulo-Escola Paulista de Medicina , São Paulo , Brazil.
authors.forename: Alexandre Wagner
authors.initials: AW
authors.lastname: Silva de Souza
keywords: ANCA; anti-GBM antibodies; autoantibodies; cryoglobulinemia; systemic vasculitis