Ali, Gohar, and Rahat Sultan Sahibzada. “Study of Post Thoracotomy Consumption of Morphine in Patients Undergoing Lobectomy”. Journal of Postgraduate Medical Institute 18, no. 1 (September 27, 2011). Accessed May 17, 2024. https://jpmi.org.pk/index.php/jpmi/article/view/843.