TY - JOUR TI - Gamma Knife Radiosurgery in the Management of Non-solitary Brain Metastases: A Retrospective Analysis of Survival AU - PANDEY, N. AU - SINGH, M. AU - KALE, S.S. JO - Turk J Oncol PY - 2020 VL - 35 SP - 459 EP - 465 DO - 10.5505/tjo.2020.2395 ER -