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.
Ho VB, Choyke PL.Ho VB, et al.Magn Reson Imaging Clin N Am. 2004 Aug;12(3):413-27, v. doi: 10.1016/j.mric.2004.03.004.Magn Reson Imaging Clin N Am. 2004.PMID: 15271363Review.