- Correspondence to Dr Mark A Graber, Department of Emergency Medicine, University of Iowa Carver College of Medicine, 200 Hawkins Drive, 1008 RCP, Iowa City, Iowa 52242, USA;
- Received May 17, 2012
- Revised September 8, 2012
- Accepted September 12, 2012
- First published November 30, 2012.
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.