AF.72 MICROENCAPSULATED SODIUM BUTYRATE IN THE PREVENTION OF ACUTE RADIOTHERAPY PROCTITIS: SINGLE-CENTER PROSPECTIVE OBSERVATIONAL STUDY. (September 2021) - Bortolus, R.; Matrone, F.; Magris, R.; Maiero, S.; Arcicasa, M.; Fornasarig, M.; Zucchetto, A.; Guarnieri, G.; Cannizzaro, R.