1. Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea.
2. Department of Radiation Oncology, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea.
3. Department of Neurosurgery, Brain Tumor Center, Yonsei University College of Medicine, Seoul, Korea.
4. Department of Radiation Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
5. Department of Radiology and Research Institute of Radiological Science and Center for Clinical Image Data Science, Yonsei University College of Medicine, Seoul, Korea.