1 Division of Psychiatry University of Tsukuba Hospital Ibaraki Japan.
2 Department of Disaster and Community Psychiatry, Faculty of Medicine University of Tsukuba Ibaraki Japan.
3 Department of Psychiatry, Faculty of Medicine University of Tsukuba Ibaraki Japan.
4 Ibaraki Mental Health and Welfare Center Ibaraki Japan.
5 Ibaraki Prefectural Medical Center of Psychiatry Ibaraki Japan.
6 Department of Psychiatry, Ibaraki Prefectural Hospital/Department of Psychiatry, Ibaraki Clinical Educational and Training Center, Faculty of Medicine University of Tsukuba Ibaraki Japan.