title: Hepatitis-associated antigen and cell-mediated immunity.
mesh_terms: D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006515:Hepatitis B virus / Q000276:immunology*; D006760:Hospitalization; D006801:Humans; D007111:Immunity, Cellular; D007918:Leprosy / Q000276:immunology
chemical_list: D006511:Hepatitis B Antigens