title: The clinical significance of the hepatitis B surface antigen.
mesh_terms: D000328:Adult; D006509:Hepatitis B / Q000276:immunology / Q000635:transmission; D006514:Hepatitis B Surface Antigens / Q000276:immunology*; D006801:Humans; D008107:Liver Diseases / Q000276:immunology*
chemical_list: D006514:Hepatitis B Surface Antigens