1. Department of Hepatology and Gastroenterology; Pitié Salpêtrière Hospital; University Pierre et Marie Curie; Paris France
2. Department of Biomedical, Metabolic and Neural Sciences; University of Modena and Reggio Emilia; Modena Italy
3. Department of Pathology; Pitié Salpêtrière Hospital; University Pierre et Marie Curie; Paris France
4. Saint-Antoine Research Centre; University Pierre et Marie Curie; Paris France