Evaluation on effectiveness of salmeterol/fluticasonepropionate combined with N-acetylcysteine in treatment of chronic obstructive pulmonary disease

XU Xiao-guang，JIANG Zhen-yu，DU Min-juan，YANG Ya-qin，JIANG Ying-chao

Journal of Jilin University(Medicine Edition) . 2014, (04): 870 -874 . DOI: 10.13481/j.1671-587x.20140436