title: Chronic active hepatitis and periarteritis nodosa in a patient with co-occurrence of circulatory hepatitis Bs antigen and anti-HBs.
mesh_terms: D006510:Hepatitis B Antibodies / Q000032:analysis*; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006521:Hepatitis, Chronic / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010488:Polyarteritis Nodosa / Q000150:complications*
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens