Nguyễn , V. D., Lê , T. H. L., Lê , T. T. T., & Trương , T. P. (2026). THE CHANGES IN HEPATITIS B SURFACE ANTIGEN (HBsAg) LEVELS IN PATIENTS WITH CHRONIC HEPATITIS B RECEIVING ANTIVIRAL THERAPY AT THE BACH MAI INSTITUTE OF TROPICAL MEDICINE. Vietnam Medical Journal, 561(1). https://doi.org/10.51298/vmj.v561i1.18147