1. Department of Surgery and Translational Medicine, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Italy;
2. University of Groningen, University Medical Center Groningen, the Netherlands;
3. Department of Maxillo-facial Surgery, University of Milan, Milan, Italy;
4. Department of Radiation Oncology, Azienda Ospedaliero-Universitaria Careggi, University of Florence, Italy;
5. Department of Oncologic Surgery linstitut de Cancérologie de Lorraine, Nancy, France