- Correspondence to Dr Claudia Geue, Health Economics and Health Technology Assessment, University of Glasgow, Glasgow G12 8RZ, UK;
- Received 5 November 2015
- Revised 18 March 2016
- Accepted 21 March 2016
- Published in print 1 September 2016.
- Published online 11 August 2016.
- Published first 12 April 2016.
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