- Correspondence to Meelad Sayma, Peninsula College of Medicine & Dentistry, Knowledge Spa, Royal Cornwall Hospital Trust, Treliske, Truro, TR1 3HD, UK;
- Received 14 October 2016
- Revision received 22 May 2017
- Accepted 26 June 2017
- Published in print 1 September 2017.
- Published first 31 July 2017.
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