1. Department of Hepatobiliary and Liver Transplantation Surgery, Hôpital Pitié-Salpêtrière; 47-83 Boulevard de l'Hôpital; Paris 75013 France
2. Université Pierre et Marie Curie; Paris France
3. Department of General, HPB and Emergency Surgery; Nuovo Loreto Hospital; Naples Italy
4. Department of General Surgery; Hospital Italiano de Buenos Aires; Buenos Aires Argentina
5. Department of Surgery; Iwate Medical University; Iwate Japan
6. Department of Laparoscopic Surgery; Institut Mutualiste Montsouris; Paris France