title: Hepatitis B surface antigen (HBsAg) positive polyarteritis nodosa. A report of two cases and review of literature.
mesh_terms: D000328:Adult; D006514:Hepatitis B Surface Antigens / Q000276:immunology*; D006801:Humans; D008297:Male; D010488:Polyarteritis Nodosa / Q000188:drug therapy / Q000276:immunology*
chemical_list: D006514:Hepatitis B Surface Antigens