Singh, Balwinderjit, Iqbal Singh, and Satpal Sidhu. “Negative Pressure Pulmonary Oedema After Routine Elective Surgery”. International Journal of Medical and Dental Sciences 3, no. 2 (July 1, 2014): 501–506. Accessed April 25, 2024. https://ijmds.org/index.php/ijmds/article/view/511.