Wang Jiwang, Huang Mao, Qi Xu, Li Meimei, Zhou Linfu, Yin Kaisheng
Department of Respiratory Medicine, the First Affilliated Hospital, Nanjing Medical University, Nanjing 210029, China.
Zhongguo Fei Ai Za Zhi. 2011 Feb;14(2):177-80. doi: 10.3779/j.issn.1009-3419.2011.02.14.