Funding for this research was provided by:
Bowel Disease Research Foundation
Received: 27 February 2020
Accepted: 1 July 2020
First Online: 28 July 2020
Ethics approval and consent to participate
: Ethical approval was obtained from National Health Service Research Ethics Committee (Black Country Research Committee: November 2016; 16/WM/0500). The study was registered centrally with the Health Research Authority (England), the NHS Research Scotland Permissions Co-coordinating Centre (Scotland), and the Health and Care Research Permissions Service (Wales). The ELF study was registered online at ExternalRef removed (NCT02952430). The ELF Study did not require consent for participation as it was a prospective audit of practice, with no direct clinical impact upon participants.
: Not applicable.
: The authors declare that they have no competing interests.