1. Institute for Gerontology, J.F. Oberlin University, Tokyo, Japan
2. School of Nursing, San Francisco State University, San Francisco, CA, USA
3. Wakayama University, Wakayama, Japan
4. Faculty of Health Arts and Design, Swinburne University of Technology, Hawthorn, Australia
5. Faculty of Science Medicine and Health, University of Wollongong, Wollongong, Australia