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.
Kallmes DF, Altes TA, Vincent DA, Cloft HJ, Do HM, Jensen ME.Kallmes DF, et al.Neuroradiology. 1999 May;41(5):338-41. doi: 10.1007/s002340050760.Neuroradiology. 1999.PMID: 10379590
Kallmes DF, Fujiwara NH, Yuen D, Dai D, Li ST.Kallmes DF, et al.AJNR Am J Neuroradiol. 2003 Apr;24(4):591-6.AJNR Am J Neuroradiol. 2003.PMID: 12695186Free PMC article.