Tunkamnerdthai, Orathai, Paradee Auvichayapat, Wiyada Punjaruk, Naruemon Leelayuwat, Uraiwan Zaeoue, Watchara Boonsawat, and Boonsong Patjanasoontorn. 2016. “Effects of Modified Arm Swing Exercise on Pulmonary Function in Patients With Chronic Obstructive Pulmonary Disease”. Srinagarind Medical Journal 31 (5):84. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/68263.