Funding for this research was provided by:
Pfizer-Bristol-Myers Squibb alliance (N/A)
Received: 23 October 2019
Accepted: 16 December 2019
First Online: 28 December 2019
Ethics approval and consent to participate
: The study was reviewed by the NHS organisation according to the Health Research Authority guidance and was considered a service improvement, and associated service evaluation. Therefore, ethical approval was not required. Additionally, verbal consent to participate was received from patients (stated in manuscript) but written consent was not required as this was a service improvement piece. Please see NHS Defining Research for further details on requirements for service evaluation work.
: Not applicable.
: The authors declare that they have no competing interests.