[1] Univ Hohenheim, Inst Nutr Med, Fruwirthstr 12, D-70593 Stuttgart, Germany
[2] Erasmus MC, Sophia Childrens Hosp, Rotterdam, Netherlands
[3] Univ Cote Azur, CHU Nice, Gastroenterol & Nutr Clin, Nice, France
[4] Stanley Dudricks Mem Hosp, Gen & Oncol Surg Unit, Krakow, Poland
[5] Univ Zagreb, Clin Hosp Ctr Zagreb, Zagreb, Croatia
[6] Tel Aviv Univ, Schneider Childrens Med Ctr Israel, Petah Tiqwa, Israel
[7] Univ Clin Gasrtroenterohepatol, Clinal Ctr Mother Therese, Skopje, North Macedonia
[8] Univ Amsterdam, Med Ctr, Amsterdam, Netherlands
[9] Bristol Royal Hosp Children, Pediat Gastroenterol & Nutr Unit, Bristol, Avon, England
[10] Univ East Anglia, Norwich Med Sch, Norwich, Norfolk, England