1 Department of Digestive Surgery and Organ Transplantation, Virgen de la Arrixaca University Hospital, IMIB, University of Murcia, Murcia 30120, Spain. Electronic address: pedroantonio.cascales@um.es.
2 Department of Digestive Surgery and Organ Transplantation, Virgen de la Arrixaca University Hospital, IMIB, University of Murcia, Murcia 30120, Spain.