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.
Ilaslan H, Sundaram M, Unni KK.Ilaslan H, et al.AJR Am J Roentgenol. 2003 Jun;180(6):1681-7. doi: 10.2214/ajr.180.6.1801681.AJR Am J Roentgenol. 2003.PMID: 12760943