“Comparative Effect of Pursed-Lip Breathing and Stacked Breathing on Pulmonary Function and Wellbeing in Bronchiectasis Patients”, mfm, vol. 33, no. 7, Apr. 2024, Accessed: Nov. 17, 2025. [Online]. Available: https://medicalforummonthly.com/index.php/mfm/article/view/943