title: Surface hepatitis B antigen and urinary schistosomiasis.
mesh_terms: D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D012548:Schistosoma haematobium; D012552:Schistosomiasis / Q000276:immunology*; D014552:Urinary Tract Infections / Q000276:immunology*
chemical_list: D006514:Hepatitis B Surface Antigens