1. Department of Neurology; Graduate School of Medical Science; Kyoto Prefectural University of Medicine; Kyoto Japan
2. Department of Epidemiology and Public Health; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
3. Department of Neurology; International University of Health and Welfare School of Medical Sciences; Narita Japan
4. Center for Cohort Studies; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
5. Department of Medicine and Clinical Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
6. Division for Student Counseling and Guidance; Faculty of Arts and Science; Kyushu University; Kasuga Japan
7. Department of Neuropsychiatry; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
8. Department of Medical Technology; International University of Health and Welfare School of Medical Sciences at Fukuoka; Okawa Japan