Funding for this research was provided by:
National Institute for Health Research (RP-PG-0611-20008)
Received: 20 August 2019
Accepted: 1 June 2020
First Online: 10 June 2020
Ethics approval and consent to participate
: The research protocol for this study was reviewed and approved by London Surrey Borders Research Ethics Committee (15/LO/2017). All patients provided written informed consent prior to participation, including for audio-recording of interviews and telephone consultations.
: Not applicable.
: None declared.