PO-0899: Risk of brain Radionecrosis after radiosurgery in oligometastatic patients. (November 2020) - Chiovatero, I.; Mantovani, C.; Iorio, G.C.; Cavallin, C.; Vella, A.; Orlandi, E.; Cerrato, M.; Badellino, S.; Caivano, D.; Levis, M.; De Luca, V.; Ricardi, U.