Kanmaz D, Altun S, Aras G, Kahraman M, Cansever L, Kocatürk C, et al. Are predicted postoperative function values similar to actual postoperative values in patients with chronic obstructive pulmonary disease and which of the values are most useful in predicting complications?. Turk Gogus Kalp Dama 2016;24:101-107