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.
Zhao S, Zhang Y, Gu Y, Lewis DF, Wang Y.Zhao S, et al.J Soc Gynecol Investig. 2004 Oct;11(7):465-71. doi: 10.1016/j.jsgi.2004.05.003.J Soc Gynecol Investig. 2004.PMID: 15458743
Zhang Y, Zhao S, Gu Y, Lewis DF, Alexander JS, Wang Y.Zhang Y, et al. Among authors: zhao s.J Soc Gynecol Investig. 2005 Dec;12(8):586-92. doi: 10.1016/j.jsgi.2005.09.003.J Soc Gynecol Investig. 2005.PMID: 16325748
Zhao S, Gu Y, Lewis DF, Wang Y.Zhao S, et al.Placenta. 2008 Jan;29(1):81-8. doi: 10.1016/j.placenta.2007.08.007. Epub 2007 Oct 22.Placenta. 2008.PMID: 17936899Free PMC article.
Zhao S, Gu Y, Dong Q, Fan R, Wang Y.Zhao S, et al.Placenta. 2008 Dec;29(12):1024-8. doi: 10.1016/j.placenta.2008.09.011. Epub 2008 Nov 5.Placenta. 2008.PMID: 18986700Free PMC article.
Dong Q, Fan R, Zhao S, Wang Y.Dong Q, et al. Among authors: zhao s.Placenta. 2009 Jan;30(1):11-4. doi: 10.1016/j.placenta.2008.10.008. Epub 2008 Nov 25.Placenta. 2009.PMID: 19036437Free PMC article.
Zhao S, Gu Y, Fan R, Groome LJ, Cooper D, Wang Y.Zhao S, et al.Placenta. 2010 Jun;31(6):512-8. doi: 10.1016/j.placenta.2010.03.014.Placenta. 2010.PMID: 20434767Free PMC article.
Wang Y, Sun J, Gu Y, Zhao S, Groome LJ, Alexander JS.Wang Y, et al. Among authors: zhao s.Placenta. 2011 Jan;32(1):27-32. doi: 10.1016/j.placenta.2010.10.014. Epub 2010 Nov 20.Placenta. 2011.PMID: 21095001Free PMC article.