Jangda I, Gauhar Afshan. Preoxygenation in surgical patients undergoing general anaesthesia – A cross sectional survey. J Pak Med Assoc [Internet]. 2025 Sep. 25 [cited 2026 Jul. 2];75(10):1522-6. Available from: https://jpma.org.pk/index.php/public_html/article/view/10467