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.
Sorrentino C, Silvestrini B, Braghiroli L, Chung SS, Giacomelli S, Leone MG, Xie Y, Sui Y, Mo M, Cheng CY.Sorrentino C, et al. Among authors: cheng cy.Biol Reprod. 1998 Oct;59(4):843-53. doi: 10.1095/biolreprod59.4.843.Biol Reprod. 1998.PMID: 9746734
Lui WY, Lee WM, Cheng CY.Lui WY, et al. Among authors: cheng cy.Biol Reprod. 2003 Jun;68(6):2189-206. doi: 10.1095/biolreprod.102.011379. Epub 2003 Jan 22.Biol Reprod. 2003.PMID: 12606349
Lui WY, Lee WM, Cheng CY.Lui WY, et al. Among authors: cheng cy.Biol Reprod. 2003 May;68(5):1597-612. doi: 10.1095/biolreprod.102.011387. Epub 2002 Nov 27.Biol Reprod. 2003.PMID: 12606350