Funding for this research was provided by:
Medical Research Council (MR/N013751/1)
Received: 17 March 2021
Accepted: 29 July 2021
First Online: 14 September 2021
: This study was reviewed and approved by East of Scotland Research Ethics services. All participants provided their written consent to participate in this study.
: All participants gave their consent for their anonymised data to be included in publications.
: The authors declare that they have no competing interests.