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.
Narayan A, Lee AS, Kuo GP, Powe N, Kim HS.Narayan A, et al.J Vasc Interv Radiol. 2010 Jul;21(7):1011-7. doi: 10.1016/j.jvir.2010.03.012. Epub 2010 May 31.J Vasc Interv Radiol. 2010.PMID: 20570178Free PMC article.
Narayan A, Eng J, Carmi L, McGrane S, Ahmed M, Sharrett AR, Streiff M, Coresh J, Powe N, Hong K.Narayan A, et al.Radiology. 2012 Dec;265(3):949-57. doi: 10.1148/radiol.12111580.Radiology. 2012.PMID: 23175547Free PMC article.