1. Division of General and Gerontological Nursing Department of Specialized Nursing Oita University of Nursing and Health Sciences Oita Japan
2. Division of Linguistics Oita University of Nursing and Health Sciences Oita Japan
3. Division of Health Informatics and Biostatistics Department of Human Sciences Oita University of Nursing and Health Sciences Oita Japan
4. The Center for Nursing Education, Research and Collaboration Oita University of Nursing and Health Sciences Oita Japan
5. Division of Nursing Assessment Department of Basic Nursing Sciences Oita University of Nursing and Health Sciences Oita Japan
6. College of Nursing University of Colorado Aurora CO USA
7. Oita University of Nursing and Health Sciences Oita Japan
8. Department of Community Health Nursing University of Tokyo Tokyo Japan