title: Letter: Frequency of hepatitis-B infection in artificial-kidney unit and blood-procurement staff.
mesh_terms: D000914:Antibodies, Viral / Q000302:isolation & purification; D003428:Cross Infection / Q000635:transmission*; D006509:Hepatitis B / Q000453:epidemiology / Q000276:immunology / Q000635:transmission*; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006801:Humans; D006435:Renal Dialysis
chemical_list: D000914:Antibodies, Viral; D006511:Hepatitis B Antigens