aDepartment of Gastroenterology, St George’s University Hospital

bSchool of Immunology and Microbial Sciences, King’s College London

cIBD Centre, Guy’s and St Thomas’ NHS Foundation Trust, London, UK

Received 19 June 2023 Accepted 1 August 2023.

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Correspondence to Dr Sailish Honap, Department of Gastroenterology, 2nd Floor Grosvenor Wing, Blackshaw Road, St George’s University Hospital, Tooting, London SW17 0QT, UK, Tel: +020 8266 6178; e-mail: [email protected]