- Correspondence to Professor Jason Smith, Emergency Department, Derriford Hospital, Plymouth, PL6 8DH, UK;
- Received 24 February 2017
- Revised 8 March 2017
- Accepted 10 March 2017
- Published in print 1 July 2017.
- Published online 26 June 2017.
- Published first 4 May 2017.
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