Article History
Accepted: 5 April 2021
First Online: 23 December 2021
Declarations
:
: Noelle Robertson, Sarah Gunn and Rebecca Piper declare that they have no conflict of interest.
: This study was undertaken with the understanding and written consent of all participants, and the study conforms with the Declaration of Helsinki. Ethical approval was granted by the UK Health Research Authority in September 2016 (ref 16/WM/0290) and the Research and Development departments of the supporting NHS Trusts granted approval to advertise the study via their premises.