Soatti Department of Radiation Oncology Alessandro Manzoni Hospital Lecco 23900 Italy;
Department of Radiation Oncology San Donato Hospital Milan 20097 Italy;
Department of Radiation Oncology Santa Chiara University Hospital Pisa 56126 Italy;
Royal Preston Hospital Lancashire Teaching Hospital-NHS Tust Preston PR29HT United Kingdom;
Soatti Department of Radiation Oncology Alessandro Manzoni Hospital Lecco 23900 Italy;
Department of Radiation Oncology Azienda Ospedaliero-Universitaria di Ferrara Ferrara 44124 Italy;
Soatti Department of Radiation Oncology Alessandro Manzoni Hospital Lecco 23900 Italy;
Soatti Department of Radiation Oncology Alessandro Manzoni Hospital Lecco 23900 Italy;
Soatti Department of Radiation Oncology Alessandro Manzoni Hospital Lecco 23900 Italy;
Soatti Department of Radiation Oncology Alessandro Manzoni Hospital Lecco 23900 Italy;
Department of Clinical Oncology Alessandro Manzoni Hospital Lecco 23900 Italy;
Soatti Department of Radiation Oncology Alessandro Manzoni Hospital Lecco 23900 Italy;
Rectal cancer; Radiotherapy; Volumetric Modulated Arc Therapy; Imageguided radiotherapy; Intensity-modulated radiotherapy; Neoadjuvant radiotherapy;