Liu Li-Qiong, Wu Xu-Wei, Li Zhi-Dong, Liu Yan-Hong, Xiao Yi, Li Yan-Li, Zhang Li-Hui, Xing Xi-Qian
Department of Respiratory Medicine, Yan'An Hospital Affiliated to Kunming Medical University, Kunming, Yunnan 650051, China.
Chin Med J (Engl). 2015 Oct 5;128(19):2696. doi: 10.4103/0366-6999.166044.