Postoperative radiotherapy for WHO grade II–III intracranial ependymoma in adults: An intergroup collaborative study (KROG 18-06/KNOG 18-01)

Chan Woo Wee, Il Han Kim, Il Han Kim, Chul‐Kee Park, Do Hoon Lim, Do‐Hyun Nam, Hong In Yoon, Chang‐Ok Suh, Jong Hee Chang, Woong-Ki Chung, Tae‐Young Jung, Shin-Hyung Park, Chae‐Yong Kim, Young Zoon Kim, Ho Shin Gwak, Kwan Ho Cho, Jin Hee Kim, Jung Ho Im, Woo Chul Kim, Sung Hwan Kim, In Ah Kim, In Ah Kim