- Correspondence to Dr Clifton W Callway, Emergency Medicine, University of Pittsburgh School of Medicine, 400A Iroquois, 3600 Forbes Avenue, Pittsburgh, Pennsylvania, USA;
- Accepted May 22, 2017
- First published July 13, 2017.
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.