[1] CHU Toulouse, Unite Gastroenterol Hepatol Nutr Diabetol & Malad, Hop Enfants, Toulouse, France
[2] Univ Toulouse, IRSD, INSERM, INRAE,ENVT,UPS, Toulouse, France
[3] Great Ormond St Hosp Sick Children, Neurogastroenterol & Motil Unit, Dept Paediat Gastroenterol, London, England
[4] Univ Cologne, Fac Med, Dept Paediat, Cologne, Germany
[5] Univ Cologne, Univ Hosp Cologne, Cologne, Germany
[6] Hosp St Joan de Deu, Dept Paediat Gastroenterol Hepatol & Nutr, Barcelona, Spain
[7] Univ Med Ctr Maribor, Dept Paediat, Maribor, Slovenia
[8] Univ Naples Federico II, Dept Translat Med Sci, Sect Paediat, Naples, Italy
[9] Victor Babes Univ Med & Pharm, Dept Paediat, Paediat Clin 2, Timisoara, Romania
[10] La Fe Univ Hosp, Paediat Gastroenterol, Valencia, Spain
[11] Oslo Univ Hosp, Dept Paediat Med, Div Paediat & Adolescent Med, Oslo, Norway
[12] Sheffield Childrens Hosp NHS Fdn Trust, Ctr Paediat Gastroenterol, Sheffield, S Yorkshire, England
[13] Al Jalila Childrens Specialty Hosp, Dept Paediat Gastroenterol, Dubai, U Arab Emirates
[14] Univ Amsterdam, Emma Childrens Hosp, Dept Paediat Gastroenterol & Nutr, Amsterdam UMC, Amsterdam, Netherlands