1. Department of Psychiatry; Nara Medical University School of Medicine; Nara Japan
2. Department of Psychiatry; Teikyo University School of Medicine; Tokyo Japan
3. Department of Psychiatric Rehabilitation; National Institute of Mental Health, National Center of Neurology and Psychiatry; Tokyo Japan
4. Center for Clinical Research and Development Initiative, Osaka Psychiatric Medical Center; Osaka Japan
5. Department of Rehabilitation; Faculty of Medicine, The University of Tokyo; Tokyo Japan
6. National Center of Neurology and Psychiatry; National Center Hospital; Tokyo Japan