29. STUDY ON PLASMA CA 15-3 CONCENTRATION IN BREAST CANCER PATIENTS TREATED WITH TAMOXIFEN AT K HOSPITAL FROM 2019 TO 2022. YHCĐ [Internet]. 2024 Sept. 4 [cited 2026 Sept. 9];65(5). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/1431