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.
Qi J, Min Z, Zhu Y, Liu Y, Lu J, Wang L, Wang Y, Ren J, Zheng J, Xu D, Zhou M, Yao Y, Gao Y.Qi J, et al.Zhonghua Wai Ke Za Zhi. 2002 Apr;40(4):241-7.Zhonghua Wai Ke Za Zhi. 2002.PMID: 12133349Chinese.
Zhou HK, Yu LX, Zheng SB, Min ZL, Zhu YH.Zhou HK, et al. Among authors: min zl.Di Yi Jun Yi Da Xue Xue Bao. 2002 Dec;22(12):1093-5.Di Yi Jun Yi Da Xue Xue Bao. 2002.PMID: 12480604Chinese.