1. Department of Neurosurgery, Kyoto University Graduate School of Medicine
2. Department of Neurosurgery, National cerebral and Cardiovascular Center
3. Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University
4. Department of Neuroendovascular Therapy, Institute of Biomedical Research and Innovation
5. Department of Neurosurgery, Kobe City Medical Center General Hospital