1. Department of Emergency and Critical Care Medicine, Tokyo Medical University Hachioji Medical Center
2. Department of Neurosurgery, Tokyo Metropolitan Tama Medical Center
3. Department of Neurosurgery, Tokyo Medical University Hachioji Medical Center
4. Department of Neurosurgery, National Hospital Organization Disaster Medicine Center
5. Department of Stroke and Cerebrovascular Medicine, Kyorin University
6. Department of Neurology and Stroke Medicine, Tokyo Metropolitan Tama Medical Center
7. Division of Stroke Prevention and Treatment, Department of Neurosurgery, University of Tsukuba
8. Department of Neurosurgery, Kyorin University