Thenmozhi P, Thamarai Selvi K, Vijaya Lakshmi M, and Thilakavathi N K, “Active Cycle Breathing Technique on Pulmonary Complications After Coronary Artery Bypass Graft”, Int. J. Res. Pharm. Sci., vol. 11, no. (SPL 4), pp. 1–7, Nov. 2020.