1. Department of Neurosurgery, National Taiwan University Hospital, Taipei, Taiwan;
2. Department of Neurosurgery, Cipto Mangunkusumo National General Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia;
3. Department of Oncology, Division of Radiation Oncology, National Taiwan University Hospital, Taipei, Taiwan;
4. Institute of Medical Device and Imaging, National Taiwan University, Taipei, Taiwan;
5. Graduate School of Advanced Technology, National Taiwan University, Taipei, Taiwan