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.
Sun QY, Liu K, Kikuchi K.Sun QY, et al. Among authors: kikuchi k.Biol Reprod. 2008 Dec;79(6):1014-20. doi: 10.1095/biolreprod.108.070409. Epub 2008 Aug 27.Biol Reprod. 2008.PMID: 18753607Review.
Somfai T, Kikuchi K, Onishi A, Iwamoto M, Fuchimoto D, Papp AB, Sato E, Nagai T.Somfai T, et al. Among authors: kikuchi k.Mol Reprod Dev. 2004 Aug;68(4):484-91. doi: 10.1002/mrd.20103.Mol Reprod Dev. 2004.PMID: 15236334