1 Radiation Oncology Unit, Dipartimento di Oncoematologia, Ospedale "Vito Fazzi", Lecce, Italy.
2 Radiation Oncology Unit, Azienda Ospedaliero-Universitaria Careggi, Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy.
3 Department of Radiotherapy, Policlinico Umberto I, Department of Radiological, Oncological and Pathological Sciences, "Sapienza" University of Rome, Rome, Italy.
4 Department of Precision Medicine, University of Campania "L. Vanvitelli", Naples, Italy.
5 Department of Oncology, Radiation Oncology, University of Turin, Turin, Italy.
6 Unità Operativa Complessa (UOC) Radioterapia Oncologica, Fondazione Policlinico Universitario Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) "A. Gemelli", Roma, Italy.
7 Unità Operativa (UO) Radioterapia Oncologica, Villa Santa Teresa, Palermo, Italy.
8 Department of Biomedical Image Processing and Analysis, Ri.Med Foundation, Palermo, Italy.
9 Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Molecular and Clinical Medicine, University of Palermo, Palermo, Italy.
10 Radiation Oncology Unit, Centro Cyberknife, Istituto Fiorentino di Cura e Assistenza, Florence, Italy.