Cao Jian-Hua, Xu Jin-Ping, Li Yong-Cheng, Lai Jun, Li Qiang
Department of Respiratory Medicine, Xiaoshan No.1 People's Hospital, Medical College of Hangzhou Normal University, Hangzhou, Zhejiang 311201, China.
Chin Med J (Engl). 2009 Mar 20;122(6):755-7.