title: Hepatitis-B antigen in saliva and semen.
mesh_terms: D002353:Carrier State; D003075:Coitus; D006509:Hepatitis B / Q000097:blood / Q000382:microbiology; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006716:Homosexuality; D006801:Humans; D008297:Male; D011863:Radioimmunoassay; D012463:Saliva / Q000276:immunology / Q000382:microbiology; D012494:Sampling Studies; D012661:Semen / Q000276:immunology / Q000382:microbiology; D012703:Serotyping
chemical_list: D006511:Hepatitis B Antigens