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.
Wang X, Chen J, Liu H, Xu Y, Wang X, Xue C, Yu D, Jiang Z.Wang X, et al. Among authors: liu h.Domest Anim Endocrinol. 2008 Aug;35(2):208-16. doi: 10.1016/j.domaniend.2008.05.006. Epub 2008 Jun 26.Domest Anim Endocrinol. 2008.PMID: 18638664
Xue C, Yu J, Liu H, Chen J.Xue C, et al. Among authors: liu h.Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2009 Oct;26(5):1133-6.Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2009.PMID: 19947505Review.Chinese.
Xiong K, Wu W, Wang X, Ma X, Chen J, Liu H.Xiong K, et al. Among authors: liu h.Reprod Fertil Dev. 2013;25(3):503-10. doi: 10.1071/RD12116.Reprod Fertil Dev. 2013.PMID: 22951141