1. Department of Gerontology Health and Welfare, Pai Chai University, Seo-Gu, Daejeon, Republic of Korea
2. Dublin City University, Age-Friendly University Global Network, Dublin, Ireland
3. Watts College of Public Service and Community Solutions, Osher Lifelong Learning Institute, Arizona State University, Phoenix, Arizona, USA
4. Entrepreneurial Studies, Hobart & William Smith Colleges, Geneva, New York, USA