- Correspondence to Ed B G Barnard, Academic Department of Military Emergency Medicine, Royal Centre for Defence Medicine, Institute of Research and Development, Birmingham B15 2SQ, UK;
- Received 5 June 2017
- Revision received 20 August 2017
- Accepted 22 August 2017
- Published online 6 October 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.