1. Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
2. Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Korea.
3. Department of Neurosurgery, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea.
4. Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea.
5. Division of Neurotrauma & Neurocritical Care Medicine, Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
6. Department of Critical Care Medicine, Kangbuk Samsung Hospital, Seoul, Korea.
7. Department of Critical Care Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea.
8. Department of Neurosurgery and Neurology, Seoul National University Bundang Hospital, Seongnam, Korea.
9. Department of Neurosurgery, Yeungnam University Medical Center, Daegu, Korea.
10. Gachon University Gil Hospital Regional Trauma Center, Incheon, Korea.
11. Department of Neurosurgery, Gangnam Severance Hospital, Seoul, Korea.
12. Department of Neurosurgery, Incheon St. Mary’s Hospital, The Catholic University of Korea, Incheon, Korea.