Đoàn ML, Nguyễn TPL, Trần VL, Ngô HQ, Hồ QN, Kiều VT, et al. HOW ADEQUATE IS PREOXYGENATION BEFORE ENDOSCOPIC SEDATION IN REDUCING HYPOXEMIA: IS ONE MINUTE OR TWO MINUTES ENOUGH?. JPMP175 [Internet]. 2025 June 30 [cited 2026 May 25];(42):11. Available from: https://jpmp175.vojs.vn/index.php/jpmp175/article/view/30