1. Medical Physics Unit, Gemelli Molise Hospital‐Università Cattolica del Sacro Cuore Campobasso Italy
2. Department of Medical and Surgical Sciences (DIMEC) Alma Mater Studiorum University of Bologna Bologna Italy
3. Department of Radiation Oncology National Institute of ENT Dhaka Bangladesh
4. Radiation Oncology IRCCS Azienda Ospedaliero‐Universitaria di Bologna Bologna Italy