ASSIGNED VALUES AND Z-SCORES OF EXTERNAL QUALITY ASSESSMENT SAMPLES FOR COAGULATION TESTING ACROSS MULTIPLE PLATFORMS. YHCĐ [Internet]. 2026 Apr. 21 [cited 2026 Sept. 8];67(CĐ4-HN Ký sinh trùng-HN Hóa sinh 2026). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/4850