title: Measurement of HBsAg in renal-unit patients.
mesh_terms: D002353:Carrier State / Q000276:immunology; D003428:Cross Infection / Q000276:immunology; D006509:Hepatitis B / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000302:isolation & purification*; D006757:Hospital Units; D006801:Humans; D007676:Kidney Failure, Chronic / Q000276:immunology; D006435:Renal Dialysis
chemical_list: D006514:Hepatitis B Surface Antigens