W. Sahar, A. Elengoe, S. A. Batool, A. Bashir, A. Shan, and A. Jalal, “The Role of Preoperative Breathing Exercises in Reducing Postoperative Respiratory Complications in Coronary Artery Bypass Grafting: A Comparative Review of On-Pump and Off-Pump Techniques”, Pak Heart J, vol. 57, no. 3, pp. 179–187, Sep. 2024.