1 Children's Hospital Zagreb, University of Zagreb School of Medicine, Zagreb, Croatia.
2 School of Medicine, University J.J Strossmayer, Osijek, Croatia.
3 Paediatric Department, Vittore Buzzi Children's Hospital, Università degli Studi di Milano, Milan, Italy.
4 2nd Paediatric Clinic, University of Medicine and Pharmacy Iuliu Hatieganu, Cluj-Napoca, Romania.
5 Department of Paediatric Gastroenterology, Hepatology and Nutrition, Intestinal Failure Rehabilitation Centre, National Reference Centre for Rare Digestive Diseases, APHP Necker-Enfants Malades Hospital, Paris-Descartes University, Paris, France.
6 Paediatric Gastroenterology, Hepatology and Nutrition, Cerrahpaşa Medical Faculty, Turkey.
7 Department of Paediatrics, Scientific Institute "Casa Sollievo della Sofferenza", University of Foggia, Foggia, Italy.
8 European Paediatric Association/Union of National European Paediatric Societies and Associations (EPA/UNEPSA), Berlin, Germany.