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.
Cooper DE, L'esperance JO, Christman MS, Auge BK.Cooper DE, et al. Among authors: christman ms.J Urol. 2008 Aug;180(2):577-81; discussion 581-2. doi: 10.1016/j.juro.2008.04.032. Epub 2008 Jun 12.J Urol. 2008.PMID: 18554661