N Michot1, T Guilbaud1, L R Le Nail2, M Ouaissi3. 1. Department of Digestive, Oncological, Endocrine, and Hepatic Surgery, and Hepatic Transplantation, Trousseau Hospital, CHRU Trouseau, Tours, France. 2. Department of Traumatology and Orthopedics, Trousseau Hospital, University of Tours, Tours, France. 3. Department of Digestive, Oncological, Endocrine, and Hepatic Surgery, and Hepatic Transplantation, Trousseau Hospital, CHRU Trouseau, Tours, France. m.ouaissi@chu-tours.fr.