Sengupta, Sourabh, Maitreyee Mukherjee, Prasenjit Dasgupta, Sajib Chatterjee, and Dipasri Bhattacharya. “Incidence of Perioperative Respiratory Complications in Patients Undergoing Elective Open Upper Abdominal Surgery under General Anaesthesia: Smokers Versus Non-Smokers - An Observational Study”. Asian Journal of Medical Sciences 13, no. 3 (March 1, 2022): 76–82. Accessed November 24, 2024. https://nepjol.info/index.php/AJMS/article/view/41829.