1. Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
2. Department of Neurosurgery, Shiga University of Medical Science, Ohtsu, Shiga, Japan
3. Department of Neurosurgery, Juntendo Tokyo Koto Geriatric Medical Center, Tokyo, Japan
4. Department of Radiology, Kindai University Faculty of Medicine, Osakasayama, Osaka, Japan
5. Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Kyoto, Japan
6. Department of Neuropsychiatry, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
7. Department of Psychiatry, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
8. Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan
9. Department of Neurosurgery, Division of Surgery, Osaka Medical College, Takatsuki, Osaka, Japan
10. Department of Neurosurgery, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Aichi, Japan
11. Department of Neurosurgery, Chibaken Saiseikai Narashino Hospital, Narashino, Chiba, Japan
12. Department of Neurosurgery, Noto General Hospital, Nanao, Ishikawa, Japan
13. Department of Neurosurgery, Kitami Red Cross Hospital, Kitami, Hokkaido, Japan
14. Department of Neurosurgery, Tokyo Kyosai Hospital, Federation of National Public Service Personnel Mutual Aid Associations, Tokyo, Japan
15. Department of Functional Brain Imaging Research, National Institute of Radiological Science, National Institutes for Quantum and Radiological Science and Technology, Chiba, Chiba, Japan
16. Department of Neurosurgery, Hokushinkai Megumino Hospital, Eniwa, Hokkaido, Japan
17. Normal Pressure Hydrocephalus Center, Jifukai Atsuchi Neurosurgical Hospital, Kagoshima, Kagoshima, Japan
18. Department of Neurosurgery, Kumamoto Takumadai Hospital, Kumamoto, Kumamoto, Japan
19. Department of Neurosurgery at Tokai University School of Medicine, Isehara, Kanagawa, Japan
20. Division of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, Yahaba, Iwate, Japan
21. Department of Radiology, Juntendo University School of Medicine, Tokyo, Japan
22. Nishinomiya Kyoritsu Rehabilitation Hospital, Nishinomiya, Hyogo, Japan
23. Division of Neurology and Clinical Neuroscience, Department of Internal Medicine III, Yamagata University School of Medicine, Yamagata, Yamagata, Japan
24. Department of Behavioral Neurology and Neuropsychiatry, Osaka University United Graduate School of Child Development, Suita, Osaka, Japan
25. Department of Neurosurgery and Normal Pressure Hydrocephalus Center, Rakuwakai Otowa Hospital, Kyoto, Kyoto, Japan