[1] Western Gen Hosp, Edinburgh IBD Unit, Edinburgh EH4 2XU, Midlothian, Scotland
[2] Glasgow Royal Infirm, Gastroenterol Unit, Glasgow, Lanark, Scotland
[3] Evelina London Childrens Hosp, Pediat Gastroenterol, London, England
[4] Newcastle Univ, Inst Cellular Med, Newcastle Upon Tyne, Tyne & Wear, England
[5] Newcastle Tyne Hosp NHS Fdn Trust, Dept Gastroenterol, Newcastle Upon Tyne, Tyne & Wear, England
[6] NHS Greater Glasgow & Clyde, Queen Elizabeth Univ Hosp, Dept Gastroenterol, Glasgow, Lanark, Scotland
[7] Nottingham Univ Hosp NHS Trust, NIHR Nottingham Biomed Res Ctr, Nottingham, England
[8] Univ Nottingham, Nottingham Digest Dis Ctr, Nottingham, England
[9] Royal London Hosp, Dept Gastroenterol, London, England
[10] St George Hosp, Gastroenterol, London, England
[11] Hull Univ Teaching Hosp NHS Trust, IBD Unit, Kingston Upon Hull, N Humberside, England
[12] Hillingdon Hosp NHS Fdn Trust, Dept Gastroenterol, Uxbridge, Middx, England
[13] St James Univ Hosp, Leeds Gastroenterol Inst, Leeds, W Yorkshire, England
[14] Royal Liverpool & Broadgreen Hosp NHS Trust, Dept Hepatol & Liver Transplantat, Liverpool, Merseyside, England
[15] New Cross Hosp, Dept Gastroenterol, Wolverhampton, England