National Registry of Diseases Office Singapore Renal Registry (Prevalent of Dialysis) NRPR110 hepb_ag hepatitis BsAg status Positive/Negative/Equivocal/Missing 1999-2021
National Registry of Diseases Office Singapore Renal Registry (Prevalent of Dialysis) NRPR110 hepb_ag hepatitis BsAg status Positive/Negative/Equivocal/Missing 1999-2021