1.
Kim K- song, Byun M- kwang, Lee W- hwee, Cynn H- seock, Kwon O- yun, Yi C- hwi. Effects of breathing maneuver and sitting posture on muscle activity in inspiratory accessory muscles in patients with chronic obstructive pulmonary disease. Multidiscip Respir Med [Internet]. 2012 Jun. 20 [cited 2024 Jul. 7];7. Available from: https://mrmjournal.org/index.php/mrm/article/view/596