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.
Zhen XM, Qiao J, Li R, Wang LN, Liu P.Zhen XM, et al. Among authors: li r.J Assist Reprod Genet. 2008 Jan;25(1):17-22. doi: 10.1007/s10815-007-9187-9. Epub 2008 Jan 18.J Assist Reprod Genet. 2008.PMID: 18202912Free PMC article.
Wang L, Li H, Wang S, Gong J, Zeng X, Li R, Nong Y, Huang Y, Chen X, Huang Z.Wang L, et al. Among authors: li h, li r.Zhonghua Yu Fang Yi Xue Za Zhi. 1999 Mar;33(2):104-6.Zhonghua Yu Fang Yi Xue Za Zhi. 1999.PMID: 11864465Chinese.
Li Y, Li S, Dai Y, Du W, Zhao C, Wang L, Wang H, Li R, Liu Y, Wan R, Li N.Li Y, et al. Among authors: li s, li n, li r.Theriogenology. 2007 May;67(8):1331-8. doi: 10.1016/j.theriogenology.2006.10.022. Epub 2007 Apr 9.Theriogenology. 2007.PMID: 17416410
Wang S, Sun X, Ding F, Zhang K, Zhao R, Li S, Li R, Tang B, Zhang L, Liu Y, Li J, Gao F, Wang H, Wang L, Dai Y, Li N.Wang S, et al. Among authors: li s, li j, li n, li r.Theriogenology. 2009 Sep 1;72(4):535-41. doi: 10.1016/j.theriogenology.2009.04.009. Epub 2009 Jun 9.Theriogenology. 2009.PMID: 19515406
Lu CL, Yan J, Zhi X, Xia X, Wang TR, Yan LY, Yu Y, Ding T, Gao JM, Li R, Qiao J.Lu CL, et al. Among authors: li r.Reproduction. 2015 May;149(5):425-33. doi: 10.1530/REP-14-0557. Epub 2015 Feb 16.Reproduction. 2015.PMID: 25687412
He Z, Ma Y, Li L, Liu J, Yang H, Chen C, Lin N, Bai Y, Ma R, Li R, Wu Z, Qiao J.He Z, et al. Among authors: li l, li r.Geburtshilfe Frauenheilkd. 2016 Jun;76(6):709-717. doi: 10.1055/s-0041-111697.Geburtshilfe Frauenheilkd. 2016.PMID: 27365542Free PMC article.
Li WQ, Li R, Liu PF, Huang YB.Li WQ, et al. Among authors: li r.Zhonghua Liu Xing Bing Xue Za Zhi. 2016 Jul;37(7):1039-43. doi: 10.3760/cma.j.issn.0254-6450.2016.07.026.Zhonghua Liu Xing Bing Xue Za Zhi. 2016.PMID: 27453120Chinese.