- Correspondence to Richard Pilbery, Research Paramedic, Yorkshire Ambulance Service NHS Trust, Springhill, Brindley Way, Wakefield 41 Business Park, Wakefield WF2 0XQ, UK;
- Received April 29, 2015
- Revised January 7, 2016
- Accepted January 19, 2016
- First published February 10, 2016.
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.