1. Department of Gastroenterology and Nutrition, Lyon-Sud hospital, Hospices Civils de Lyon, Université Claude Bernard Lyon 1 , Lyon , France
2. Université Clermont Auvergne, Inserm, 3iHP, CHU Clermont-Ferrand, Service d’Hépato-Gastroentérologie , Clermont-Ferrand , France
3. Department of Gastroenterology, University hospital of Saint-Etienne , Saint-Etienne , France
4. University Clinic of Hepato-Gastroenterology, University Hospital , Grenoble , France
5. INSERM U1111, Centre International de Recherche en Infectiologie , Lyon , France