Funding for this research was provided by:
Health Technology Assessment Programme (15/106/04)
Received: 5 December 2018
Accepted: 17 January 2019
First Online: 11 February 2019
Ethics approval and consent to participate
: Ethical approval was granted by the Wales Research Ethics Committee 3 on 23 February 2017 (reference 17/WA/0031). All participants will complete a consent form. Only after consent for participation has been obtained will data be collected. Any significant amendments to the protocol or supporting materials will be submitted to the Committee and Health and Care Research Wales/Health Research Authority for approval before being disseminated to sites.
: Not applicable.
: The authors declare that they have no competing interests.
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