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.
Peng CH, Cheng DF, Zhou GW, Yang WP, Lei RQ, Jin XL, Yuan F, Chen L, Zhang SD, Li HW.Peng CH, et al. Among authors: zhou gw.Zhonghua Wai Ke Za Zhi. 2005 Feb 1;43(3):145-8.Zhonghua Wai Ke Za Zhi. 2005.PMID: 15842889Chinese.
Cheng DF, Peng CH, Zhou GW, Tao ZY, Chen X, Lei RQ, Zhang SD, Li HW.Cheng DF, et al. Among authors: zhou gw.Chin Med J (Engl). 2005 Jun 5;118(11):922-6.Chin Med J (Engl). 2005.PMID: 15978193