(1)
Sakhaei, S.; Sadagheyani, H. E.; Zinalpoor, S.; Markani, A. K.; Motaarefi, H. The Impact of Pursed-Lips Breathing Maneuver on Cardiac, Respiratory, and Oxygenation Parameters in COPD Patients. Open Access Maced J Med Sci 2018, 6, 1851-1856.