Chi, Phan Thùy, and Nguyễn Hữu Tú. “19. Pre-Operative Preparation for Patient With History of COVID-19”. Journal of Medical Research 160, no. 12V2 (January 30, 2023): 158-163. Accessed November 8, 2026. https://tapchinghiencuuyhoc.vn/index.php/tcncyh/article/view/1304.