Inflamm Bowel Dis 2013 Dec;19(13):2820-8
*Université Paris Descartes, Sorbonne Paris Cité, Institut Imagine, Paris, France; †Assistance Publique-Hôpitaux de Paris, Hôpital Necker-Enfants Malades, Service de Gastroentérologie pédiatrique, Paris, France; ‡Department of Pediatric Gastroenterology, ErasmusMC-Sophia Children's Hospital, Rotterdam, the Netherlands; §Department of Gastroenterology, Great Ormond Street Hospital for Sick Children and Institute of Child Health, London, United Kingdom; ‖Pediatric Gastroenterology Unit, Centro Hospitalar do Porto, Porto, Portugal; ¶Marienhospital, Bonn, Germany; **Department of Gastroenterology, Hepatology and Feeding Disorders, The Children's Memorial Health Institute, Warsaw, Poland; ††Gastroenterologia, Endoscopia Digestiva, Epatologia e Cura del Bambino con Trapianto di Fegato, Dipartimento Salute della Donna e del Bambino, Padova, Italy; ‡‡Assistance Publique-Hôpitaux de Paris, Hôpital Necker-Enfants Malades, Service d'anatomopathologie, Paris, France; §§Assistance Publique-Hôpitaux de Paris, Hôpital Necker-Enfants Malades, Service de radiologie, Paris, France; ‖‖INSERM U989, Paris, France; and ¶¶INSERM U768, Paris, France.