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.
Psychogios MN, Kreusch A, Wasser K, Mohr A, Gröschel K, Knauth M.Psychogios MN, et al.AJNR Am J Neuroradiol. 2012 Sep;33(8):1488-93. doi: 10.3174/ajnr.A2990. Epub 2012 Mar 29.AJNR Am J Neuroradiol. 2012.PMID: 22460339Free PMC article.