Ghanbari, A. ., N. . Shirmohamadi, E. . Paryad, M. . Bazghale, and R. . Mohammadpourhodki. “Effect of Breathing Exercises on Fatigue Dimensions in Patients With COPD”. Medical Science and Discovery, vol. 5, no. 4, Apr. 2018, pp. 174-9, https://medscidiscovery.com/index.php/msd/article/view/232.