Funding for this research was provided by:
Research for Patient Benefit Programme (PB-PG-0808-17303)
Received: 17 January 2019
Accepted: 13 March 2020
First Online: 19 March 2020
Ethics approval and consent to participate
: Ethical approval for the study was received from the National Research Ethics Service Committee, East of England (June 2011: 11/EE/0148). Written informed consent was obtained from all participants in this study.
: All participants gave their written consent for the use of de-identified data collected in interviews and observations to be used in publications and outputs.
: The authors declare that they have no competing interests.