. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: J Vasc Interv Radiol. 2011 Dec 16;23(2):257–64.e4. doi: 10.1016/j.jvir.2011.10.019
© 2011 The Society of Interventional Radiology. Published by Elsevier Inc. All rights reserved.