1. Department of Nursing, Hyogo University of Health Sciences, 1-3-6 Minatojima, Chuo-ku, Kobe 650-8530, Japan
2. Department of Neuropsychiatry, Kanto Medical Center, Nippon Telegraph and Telephone East Corporation, 5-9-22 Higashi-Gotanda, Shinagawa-ku, Tokyo 141-8625, Japan
3. Department of Literature, Atomi University, 1-9-6 Nakano, Niiza-shi, Saitama 352-8501, Japan