PO-0624: Gammaknife Radiosurgery in patients receiving anticancer immunotherapy: efficacy and safety. (May 2017) - Greto, D.; Loi, M.; Scoccianti, S.; Baki, M.; Desideri, I.; Bordi, L.; Bono, P.; Meattini, I.; Bonomo, P.; Terziani, F.; Carfora, V.; Livi, L.