Funding for this research was provided by:
National Institute for Health Research School for Primary Care Research (SPCR-2014-10043)
Text and Data Mining valid from 2018-06-13
Received: 17 January 2018
Accepted: 15 May 2018
First Online: 13 June 2018
Ethics approval and consent to participate
: Ethics approval for this study was received from the University of Cambridge Psychology Research Ethics Committee on 13 October 2016 (ref PRE.2016.073). All participants in the RAND Consensus Panel gave written signed consent for the study.
: The authors have no competing interests to declare.
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