RADIOBIOLOGICAL ASSESSMENT OF HYPO-FRACTIONATED RADIOTHERAPY FOR THE PREOPERATIVE MANAGEMENT OF RECTAL CARCINOMA USING A NON-LINEAR MECHANISTIC MODEL. (December 2022) - Matsali, E.; Pappas, E.; Lyraraki, E.; Lymperopoulou, G.; Karaiskos, P.; Mazonakis, M.