1 Department of General Surgery and Organ Transplantation, Umberto I Policlinic of Rome, Sapienza University of Rome, Rome, Italy; Service de Chirurgie Hépatobiliaire et Digestive, Centre Hospitalier Universitaire de Rennes, Université de Rennes 1, France. Electronic address: gblevisandri@gmail.com.
2 Service de Chirurgie Hépatobiliaire et Digestive, Centre Hospitalier Universitaire de Rennes, Université de Rennes 1, France.
3 Department of General Surgery and Organ Transplantation, Umberto I Policlinic of Rome, Sapienza University of Rome, Rome, Italy.