R. C. Chin, Guenette, J. A., Cheng, S., Raghavan, N., Amornputtisathaporn, N., Cortés-Télles, A., Webb, K. A., and O'Donnell, D. E.,
“Does the respiratory system limit exercise in mild chronic obstructive pulmonary disease?”,
Am J Respir Crit Care Med, vol. 187, no. 12, pp. 1315-23, 2013.