- Correspondence to Alejandro Santillan, 525 E. 68th St, Division of Interventional Neuroradiology, Department of Neurological Surgery, New York Presbyterian Hospital, Weill Cornell Medical Center, New York, NY 10065, USA;
- Accepted 4 February 2011
- Published in print 1 July 2011.
- Published online 9 June 2011.
- Published first 28 April 2011.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.