1 Department of Neuropsychopharmacology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Japan; Clinical Psychology Course, Department of Psycho-Social Studies, School of Arts and Letters, Meiji University, Japan. Electronic address: kawashima@ncnp.go.jp.
2 Department of Neuropsychopharmacology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Japan; Department of Biostatistics, School of Public Health, Kyoto University, Japan.
3 Department of Psychiatry, Faculty of Medicine, Shimane University, Japan.
4 Psychiatric Center, Yokohama City University Medical Center, Japan.
5 Department of Neuropsychiatry, Sapporo Medical University Graduate School of Medicine, Japan.
6 Department of Neuropsychopharmacology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Japan.