Effects of Tiotropium Bromide Combined with Respiratory Training on Immune Function and Quality of Life in Patients with Chronic Obstructive Pulmonary Disease in the Early Stable Stage
LIU Xian-bing,LI Fang,ZHU Li-fen,ZHENG Xiao-yan
Chinese General Practice . 2018, (27): 3323 -3328 .  DOI: 10.3969/j.issn.1007-9572.2018.00.218