Gastroenterology Department, Great Ormond Street Hospital for Children, NHS Foundation Trust, London, UK.

Address correspondence and reprint requests to Susan Hill, BM, MRCP, MRCPCH, DM, Great Ormond Street Hospital for Children, NHS Foundation Trust, Great Ormond Street, London WC1N 3JH, United Kingdom (e-mail: [email protected]).

Received 6 August, 2020

Accepted 16 August, 2020

S.H. has received funding from Baxter for lectures and from Shire/Takeda for lectures, advisory boards, and research.