1. Department of Psychiatry University of Tsukuba Hospital Ibaraki Japan
2. Department of Disaster and Community Psychiatry Faculty of Medicine, University of Tsukuba Ibaraki Japan
3. Research and Development Center for Health Services University of Tsukuba Ibaraki Japan
4. Faculty of Human Sciences Toyo Gakuen University Tokyo Japan
5. Department of Health Services Research Faculty of Medicine, University of Tsukuba Ibaraki Japan
6. Department of Psychiatry Faculty of Medicine, University of Tsukuba Ibaraki Japan