- Correspondence to Dr Luke E Hodgson, Academic Unit of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK;
- Received 2 February 2016
- Revised 30 June 2016
- Accepted 18 July 2016
- Published in print 1 January 2017.
- Published online 14 December 2016.
- Published first 23 August 2016.
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