title: Classification and treatment of systemic vasculitis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications; D013700:Giant Cell Arteritis / Q000188:drug therapy; D006801:Humans; D011695:IgA Vasculitis / Q000188:drug therapy; D010488:Polyarteritis Nodosa / Q000188:drug therapy; D014657:Vasculitis / Q000145:classification* / Q000150:complications / Q000628:therapy