[1]
“PO2 and ETCO2 changes in chronic smokers during anaesthesia and in the recovery room ”, Ann Med Res , vol. 4, no. 4, pp. 0413–0417, May 2021, Accessed: Oct. 15, 2025. [Online]. Available: http://annalsmedres.org/index.php/aomr/article/view/2640