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*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.