Funding for this research was provided by:
National Institute for Health Research
Received: 25 March 2021
Accepted: 4 March 2022
First Online: 23 June 2022
: This study was approved by the North West/Liverpool East NHS Research Ethics Committee (19/NW/0353). As data were routinely recorded and anonymised before analysis, formal consent was not required from patients.
: Not applicable
: The authors declare that they have no competing interests.