1. Department of Neurosurgery Internal Medicine Radiology Seoul National University Bundang Hospital Seoul National University College of Medicine Seongnam Republic of Korea
2. Department of Neurosurgery Severance Hospital Yonsei University College of Medicine Seoul Republic of Korea
3. Department of Neurosurgery Chonnam National University Hwasun Hospital Chonnam National University College of Medicine Hwasun Republic of Korea
4. Department of Neurosurgery Asan Medical Center University of Ulsan College of Medicine Seoul Republic of Korea
5. Department of Neurosurgery Ajou University Hospital Ajou University School of Medicine Suwon Republic of Korea
6. Department of Neurosurgery Korea University Medical Center Korea University College of Medicine Seoul Republic of Korea
7. Department of Neurosurgery Seoul St. Mary’s Hospital The Catholic University of Korea College of Medicine Seoul Republic of Korea
8. Department of Internal Medicine Seoul National University Hospital Seoul National University College of Medicine Seoul Republic of Korea