[1]
K.- song Kim, M.- kwang Byun, W.- hwee Lee, H.- seock Cynn, O.- yun Kwon, and C.- hwi Yi, “Effects of breathing maneuver and sitting posture on muscle activity in inspiratory accessory muscles in patients with chronic obstructive pulmonary disease”, Multidiscip Respir Med, vol. 7, Jun. 2012, doi: 10.4081/mrm.2012.596.