1 Department of Digestive Surgery and Transplantation, University Hospital Center. Université de Montpellier- Nîmes, 641 avenue du Doyen Gaston Giraud, 34090 Montpellier, France. Electronic address: t-bardol@chu-montpellier.fr.
2 Department of Digestive Surgery and Transplantation, University Hospital Center. Université de Montpellier- Nîmes, 641 avenue du Doyen Gaston Giraud, 34090 Montpellier, France.