Funding for this research was provided by:
Research for Patient Benefit Programme (PB-PG-0613-31083)
Received: 20 August 2019
Accepted: 20 December 2019
First Online: 30 January 2020
Ethics approval and consent to participate
: Approval was by the East Midlands—Derby Research Ethics Committee (Ref: CitationRef removed/EM/0197).
: Not applicable.
: The authors declare that they have no competing interests.