- Correspondence to Maj Damian Douglas Keene, Academic Department of Military Anaesthesia and Critical Care, Institute of Research and Development, Birmingham Research Park, Vincent Drive, Birmingham B15 2SQ, UK;
- Received 18 June 2015
- Revision received 5 September 2015
- Accepted 21 September 2015
- Published in print 1 October 2016.
- Published online 27 September 2016.
- Published first 14 October 2015.
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.