title: Letter: A survey of hepatitis in laboratories.
mesh_terms: D001669:Biochemical Phenomena; D001671:Biochemistry; D006405:Hematology; D006467:Hemophilia A; D006505:Hepatitis / Q000453:epidemiology*; D006511:Hepatitis B Antigens; D006757:Hospital Units; D006801:Humans; D007757:Laboratory Infection / Q000453:epidemiology*; D008829:Microbiology; D010336:Pathology; D010564:Personnel, Hospital; D006435:Renal Dialysis; D014180:Transplantation
chemical_list: D006511:Hepatitis B Antigens