title: Letter: HB antigen in saliva.
mesh_terms: D005243:Feces / Q000382:microbiology; D006509:Hepatitis B / Q000382:microbiology; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D007122:Immunoelectrophoresis; D012463:Saliva / Q000032:analysis / Q000382:microbiology*; D012703:Serotyping; D014556:Urine / Q000382:microbiology
chemical_list: D006511:Hepatitis B Antigens