1 ARC Advanced Radiology Center (ARC), Department of Oncological Radiotherapy, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy. Electronic address: amato.infante@policlinicogemelli.it.
2 ARC Advanced Radiology Center (ARC), Department of Oncological Radiotherapy, and Hematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy; Università Cattolica del Sacro Cuore, Facoltà di Medicina e Chirurgia, Rome, Italy. Electronic address: simona.gaudino@policlinicogemelli.it.