1. Department of Gastroenterology and Digestive Endoscopy, Georges Pompidou European Hospital, Assistance Publique – Hôpitaux de Paris, Paris, France
2. Department of Gastroenterology and Digestive Endoscopy, Lariboisière Hospital, Paris, France
3. Department of Gastroenterology and Digestive Endoscopy, Nouvel Hôpital Civil, Strasbourg, France
4. Department of Gastroenterology and Digestive Endoscopy, Saint André Hospital, Bordeaux, France
5. Department of Gastroenterology and Digestive Endoscopy, Saint Philibert Hospital, Lomme, France
6. Department of Gastroenterology and Digestive Endoscopy, Edouard Herriot Hospital, Lyon, France
7. Department of Gastroenterology and Digestive Endoscopy, University Hospital of Nantes, Nantes, France
8. Department of Gastroenterology and Digestive Endoscopy, University Hospital of Grenoble, Grenoble, France
9. Assistance Publique – Hôpitaux de Paris, Georges Pompidou European Hospital, INSERM, Unité d’Épidémiologie et de Recherche Clinique, Paris, France
10. Université Paris Descartes, Sorbonne Paris Cité, Faculty of medicine, Paris, France