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.
Porrino J Jr, Maloney E, Richardson M, Mulcahy H, Ha A, Chew FS.Porrino J Jr, et al. Among authors: mulcahy h.AJR Am J Roentgenol. 2015 Feb;204(2):367-73. doi: 10.2214/AJR.14.12693.AJR Am J Roentgenol. 2015.PMID: 25615760