The effect of tai chi on chronic obstructive pulmonary disease: a pilot randomised study of lung function, exercise capacity and diaphragm strength.
Heart Lung Circ. 2014 Apr;23(4):347-52. doi: 10.1016/j.hlc.2013.10.057. Epub 2013 Oct 17.
Heart Lung Circ. 2014.
PMID: 24210727
Clinical Trial.