1. Department of Nursing Fukuoka Nursing College Fukuoka Japan
2. Graduate School of Nursing Science St. Luke's International University Tokyo Japan
3. School of Nursing Sapporo City University Sapporo Japan
4. Department of Nursing, Faculty of Life Sciences Kumamoto University Kumamoto Japan
5. Section of Geriatric Dentistry, Department of General Dentistry Fukuoka Dental College Fukuoka Japan