Ferdousi, Sultana, KN Afreen, and S Algin. “Effect of Slow Breathing Exercise on Forced Vital Capacity and Forced Expiratory Volume in Patients With Major Depressive Disorder”. Bangladesh Medical Research Council Bulletin 44, no. 3 (January 23, 2019): 118–123. Accessed June 15, 2025. https://www.banglajol.info/index.php/BMRCB/article/view/39934.