King's College London

Funding Information: Contributors OFA, HA, JC, RD, RG, SP, PP, JS and PS have all reviewed the literature and prepared the manuscript. All have written and contributed to critical revisions of the manuscript and are listed in alphabetical order according to surname. GP provided senior review and supervision. All Gastroenterology London Investigative Network for Trainees contributors collected the data. Funding Ths study was funded by Guts UK (grant number RE15696). Competing interests None declared. Patient consent for publication Not required. Provenance and peer review Not commissioned; externally peer reviewed. Data availability statement Data are available upon reasonable request. All data relevant to the study are included in the article or uploaded as supplementary information. Open access This is an open access article distributed in accordance with the Creative Commons Attribution Non Funding Information: Twitter GLINT Research Network @GLINT_Research Acknowledgements The authors thank Guts UK for the award of a grant to support the set-up and running costs of the Gastroenterology London Investigative Network for Trainees research network. We also thank Professor Anton Emmanuel for his support and supervision. Collaborators This work was undertaken by the Gastroenterology London Investigative Network for Trainees Research Network, which comprises Faisal Abbasi, Jane Abbot, Omer Ahmad, Ali Akram, Maria Aslam, Homira Ayubi, Jennifer Clough, Robin Dart, Angad Dhillon, Jonathan Digby-Bell, Robert Eckersley, Tareq El Menabawey, Jemima Finkel, Rishi Fofaria, Radha Gadhok, Shraddha Gulati, Richard Hackett, Joy Harris-Folb, George Hiner, Hein Htet, Sunjae Hwang, Nishani Jayasoorina, Misha Kabir, Rawen Kader, Jonathan King, Teo Lopez Bernal, James Maurice, Susanna Meade, Sam Pannick, Mihir Patel, Raj Patel, Polychronis Pavlidis, Sam Powles, Rebecca Preedy, Rohit Rao, Srivasthan Ravindran, Mark Samaan, Gregory Sebepos-Rogers, Jonathan Segal, Mentaj Sehmbhi, Chehkuan Tai, Holly Theaker, Zohib Tariq, Hannah Walton and Allan Xu. Publisher Copyright: © Author(s) (or their employer(s)) 2021. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.