[1] Southampton Childrens Hosp, Dept Paediat Gastroenterol, Southampton, Hants, England
[2] Univ Southampton, Human Genet & Genom Med, Southampton, Hants, England
[3] Evelina London Childrens Hosp, Dept Paediat Gastroenterol, London, England
[4] Bristol Royal Childrens Hosp, Dept Paediat Gastroenterol, Bristol, Avon, England
[5] Royal Hosp Sick Children, Dept Paediat Gastroenterol, Edinburgh, Midlothian, Scotland
[6] Royal Hosp Children Glasgow, Dept Paediat Gastroenterol, Glasgow, Lanark, Scotland
[7] Oxford Univ Hosp, Dept Paediat Gastroenterol, Oxford, England
[8] Addenbrookes Hosp, Dept Paediat Gastroenterol, Cambridge, England
[9] Royal London Hosp Barts Hlth NHS Trust, Dept Paediat Gastroenterol, London, England
[10] Alder Hey Childrens Hosp NHS Fdn Trust, Dept Paediat Gastroenterol, Liverpool, Merseyside, England
[11] Birmingham Childrens Hosp, Dept Paediat Gastroenterol, Birmingham, W Midlands, England
[12] St Georges Univ Hosp NHS Fdn Trust, Dept Paediat Gastroenterol, London, England
[13] Great Ormond St Hosp Sick Children, Dept Paediat Gastroenterol, London, England
[14] Chelsea & Westminster Hosp, Dept Paediat Gastroenterol, London, England
[15] Newcastle Upon Tyne Hosp NHS Fdn Trust, Dept Paediat Gastroenterol, Newcastle Upon Tyne, Tyne & Wear, England
[16] Kings Coll London, Dept Paediat Gastroenterol, London, England
[17] Leeds Childrens Hosp, Dept Paediat Gastroenterol, Leeds, W Yorkshire, England
[18] Sheffield Childrens NHS Fdn Trust, Dept Paediat Gastroenterol, Sheffield, S Yorkshire, England
[19] Manchester Childrens Hosp, Dept Paediat Gastroenterol, Manchester, Lancs, England
[20] Nottingham Univ Hosp NHS Trust, Dept Paediat Gastroenterol, Nottingham, England
[21] Univ Hosp Leicester NHS Trust, Dept Paediat Gastroenterol, Leicester, Leics, England