Laszlo, Helga E. http://orcid.org/0000-0003-2098-3991
Seward, Edward
Ayling, Ruth M.
Lake, Jennifer
Malhi, Aman
Stephens, Clare
Pritchard-Jones, Kathy
Chung, Donna
Hackshaw, Allan http://orcid.org/0000-0002-5570-5070
Machesney, Michael
Funding for this research was provided by:
North Central London Cancer Alliance
North Central London Cancer Alliance
North London Partners in Health and Care
Cancer Research UK
Article History
Received: 18 May 2021
Revised: 21 October 2021
Accepted: 23 November 2021
First Online: 13 December 2021
Competing interests
: All authors have completed the ICMJE uniform disclosure form atExternalRef removed. MM was chair of the NHSE Colorectal Clinical Expert group from October 2014 to February 2020. There are no other relationships or activities that could appear to have influenced the submitted work.
: Ethical approval was granted by the UK NRES West Midlands—Solihull Research Ethics Committee (ref. 17/WM/0094) and the Health Research Authority (IRAS/213710). The study was performed in accordance with the Declaration of Helsinki.