1. Department of Gastroenterology and Digestive Oncology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
2. Departement of Respiratory Medicine, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
3. University of Paris, Paris, France
4. Department of Hepato-Gastroenterology, Ramsay Private Hospital Jean-Mermoz, Lyon, France