1. Head & Neck Cancer Medical Oncology DepartmentFondazione IRCCS “Istituto Nazionale dei Tumori” and University of Milan Milan Italy
2. Unit of Clinical Epidemiology and Trial OrganizationFondazione IRCCS “Istituto Nazionale dei Tumori” Milan Italy
3. Department of PathologyFondazione IRCCS “Istituto Nazionale dei Tumori” Milan Italy