1. Department of Radiotherapy, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
2. Translational Oncology Unit, IRCCS Istituti Clinici Scientifici Maugeri, University of Pavia, Pavia, Italy
3. Radiation Oncology Clinical Department, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
4. Radiation Oncology Department, François Baclesse Center/ARCHADE, Normandy University, Caen, France