- Correspondence to Dr Theresa Lawrie, Cochrane Office, Education Centre, Royal United Hospital, Bath BA1 3NG, UK;
- Received 11 August 2016
- Revised 21 November 2016
- Accepted 16 January 2017
- Published in print 1 July 2017.
- Published online 4 July 2017.
- Published first 5 April 2017.
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