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.
Xu LM, Yin CK, Ren GP, Tian H, Wang XQ, Ding LJ, Li DS.Xu LM, et al. Among authors: yin ck.Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi. 2011 Oct;27(10):1090-3.Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi. 2011.PMID: 21968310Chinese.
Zhang SX, Yu B, Guo SL, Wang YW, Yin CK.Zhang SX, et al. Among authors: yin ck.Zhonghua Nan Ke Xue. 2003 Feb;9(1):45-7.Zhonghua Nan Ke Xue. 2003.PMID: 12680332Chinese.