title: Accelerated loss of antibody to hepatitis B surface antigen among immunodeficient homosexual men infected with HIV.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006514:Hepatitis B Surface Antigens / Q000276:immunology*; D006716:Homosexuality; D006801:Humans; D008297:Male; D013997:Time Factors
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens