An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Chen L, Yang Q, Liang Y, Liu G, Liao H, Xu G.Chen L, et al.Zhongguo Fei Ai Za Zhi. 2009 Aug 20;12(8):896-900. doi: 10.3779/j.issn.1009-3419.2009.08.13.Zhongguo Fei Ai Za Zhi. 2009.PMID: 20719179Free article.Chinese.
Liang Y, Chen L, Lin Y, Yang Q, Wang Z, Xu G.Liang Y, et al.Zhongguo Fei Ai Za Zhi. 2009 Oct 20;12(10):1101-5. doi: 10.3779/j.issn.1009-3419.2009.10.09.Zhongguo Fei Ai Za Zhi. 2009.PMID: 20723350Free article.Chinese.
Liu J, Liu G, Xu G, Chen L, Liang Y.Liu J, et al.Zhongguo Fei Ai Za Zhi. 2003 Oct 20;6(5):371-4. doi: 10.3779/j.issn.1009-3419.2003.05.12.Zhongguo Fei Ai Za Zhi. 2003.PMID: 21306682Free article.Chinese.
Chen LK, Xu GC, Teng XY, Liang Y, Liu JL, Zhou XM.Chen LK, et al. Among authors: xu gc.Ai Zheng. 2002 Aug;21(8):903-6.Ai Zheng. 2002.PMID: 12478904Chinese.
Chen LK, Xu GC, Guan ZZ, Hang Y, Yang QY.Chen LK, et al. Among authors: xu gc.Zhonghua Zhong Liu Za Zhi. 2007 Jun;29(6):437-40.Zhonghua Zhong Liu Za Zhi. 2007.PMID: 17974278Clinical Trial.Chinese.