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.
Xia C, Kahn C, Wang J, Liao Y, Chen W, Yu XQ.Xia C, et al. Among authors: chen w.Int J Environ Res Public Health. 2016 Sep 28;13(10):963. doi: 10.3390/ijerph13100963.Int J Environ Res Public Health. 2016.PMID: 27690073Free PMC article.
Chen WQ, Zhang SW, Zou XN, Zhao P.Chen WQ, et al.Zhonghua Yu Fang Yi Xue Za Zhi. 2010 May;44(5):378-82.Zhonghua Yu Fang Yi Xue Za Zhi. 2010.PMID: 20654224Chinese.
Zou XN, Duan JJ, Huangfu XM, Chen WQ, Zhao P.Zou XN, et al.Zhonghua Yu Fang Yi Xue Za Zhi. 2010 May;44(5):390-7.Zhonghua Yu Fang Yi Xue Za Zhi. 2010.PMID: 20654226Chinese.
Wei WQ, Yang J, Zhang SW, Chen WQ, Qiao YL.Wei WQ, et al.Zhonghua Yu Fang Yi Xue Za Zhi. 2010 May;44(5):398-402.Zhonghua Yu Fang Yi Xue Za Zhi. 2010.PMID: 20654227Chinese.
Zeng HM, Zheng RS, Zhang SW, Zhao P, He J, Chen WQ.Zeng HM, et al.Zhonghua Zhong Liu Za Zhi. 2012 Jul;34(7):525-31. doi: 10.3760/cma.j.issn.0253-3766.2012.07.011.Zhonghua Zhong Liu Za Zhi. 2012.PMID: 22967472Chinese.