S. A. HuduN. S. HarmalM. I. SaeedA. S. AlshrariY. A. MalikM. T. NiazlinR. HassanZ. Sekawi2024-12-302024-12-302015-03-2010.1007/s10096-015-2358-1https://dspace-cris.utar.edu.my/handle/123456789/9207Naturally occurring hepatitis B virus surface antigen mutant variants in Malaysian blood donors and vaccineesjournal-article