1. Department of Paediatrics; Saint Antoine Paediatric Hospital; Saint Vincent de Paul Hospital; Groupement des Hôpitaux de l'Institut Catholique de Lille (GHICL); Catholic University of Lille; Lille France
2. Pediatric Gastroenterology-Hepatology; Queen Fabiola Children's University Hospital; Brussels Belgium
3. Department of Microbiology; Cochin Hospital; Assistance Publique Hôpitaux de Paris (AP-HP); University Paris Descartes; Paris France