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.
Wongtawan T, Saravia F, Wallgren M, Caballero I, Rodríguez-Martínez H.Wongtawan T, et al.Theriogenology. 2006 Mar 1;65(4):773-87. doi: 10.1016/j.theriogenology.2005.07.003. Epub 2005 Aug 8.Theriogenology. 2006.PMID: 16085297