1. Radiation Oncology Department, Tomotherapy Unit, Ospedale Regionale ‘U. Parini’, AUSL Valle d'Aosta, Aosta - Italy
2. Medical Physics Department, Ospedale Regionale ‘U. Parini’, AUSL Valle d'Aosta, Aosta - Italy
3. Medical Oncology Department, Ospedale Regionale ‘U. Parini’, AUSL Valle d'Aosta, Aosta - Italy
4. Department of Oncology, Radiation Oncology, University of Torino, Turin - Italy