Funding for this research was provided by:
Policy Research Programme in the Department of Health (006/0060)
Text and Data Mining valid from 2019-12-01
Received: 7 March 2019
Accepted: 4 December 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Research Ethics Committee for Wales (ref. no. 09/MRE09/8). Informed consent was obtained from each participant before data collection and randomisation.
: Not applicable
: The authors declare that they have no competing interests.