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.
Sharma I, Singh D.Sharma I, et al. Among authors: singh d.Reproduction. 2012 Sep;144(3):373-83. doi: 10.1530/REP-12-0079. Epub 2012 Jun 25.Reproduction. 2012.PMID: 22733801