Noor Faleh, Jadeel, and Sadeq AL-Fayyadh. “Preoperative Incentive Spirometer to Prevent Postoperative Pulmonary Complications Following Open Heart Surgeries: A Randomized Single Blinded Multi-Centric Clinical Trial”. Journal of Contemporary Medical Sciences 8, no. 4 (August 26, 2022). Accessed November 23, 2024. https://jocms.org/index.php/jcms/article/view/1261.