Funding for this research was provided by:
Yorkshire Cancer Research (C402)
Received: 5 June 2020
Accepted: 14 October 2020
First Online: 4 November 2020
Ethics approval and consent to participate
: This trial received ethical approval from the London-Surrey NHS Research Ethics Committee [Ref: 17/LO/1507]. UK-wide governance approval was granted from Health and Care Research Wales Permission Service. Written informed consent was taken from all participants in the trial at recruitment.
: The authors declare that they have no competing interests.