1. Radiation Oncology Center, Department of Experimental, Diagnostic and Specialty Medicine‑DIMES, University of Bologna, S. Orsola‑Malpighi Hospital, I‑40138 Bologna, Italy
2. Radiotherapy Unit, Fondazione di Ricerca e Cura ‘Giovanni Paolo II’, Catholic University of Sacred Heart, I‑86100 Campobasso, Italy
3. Department of Radiation Oncology, Black Lion Hospital, 9086 Addis Ababa, Ethiopia
4. Radiation Oncology Department, United Hospital Limited, Gulshan, Dhaka 1212, Bangladesh
5. Medical Physic Unit, Fondazione di Ricerca e Cura ‘Giovanni Paolo II’, Catholic University of Sacred Heart, I‑86100 Campobasso, Italy