Received: 21 March 2019
Accepted: 6 July 2020
First Online: 10 July 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the NHS Research Ethics Committee (through the Integrated Research Application System (IRAS) prior to commencing data collection. Written consent was obtained from all participants in the study.
: Not applicable.
: The authors declare that they have no competing interests.