1. Lyndon B. Johnson School of Public Affairs and The Center on Aging and Population Sciences, The University of Texas at Austin, USA
2. Stempel School of Public Health and Social Work, Florida International University, University Park, USA
3. National Institute of Geriatrics, Mexico City, Mexico
4. Department of Kinesiology and Community Health, University of Illinois, Urbana-Champaign, USA
5. Department of Speech, Language and Hearing Sciences, The University of Texas at Austin, USA
6. Kent School of Social Work, University of Louisville, Kentucky, USA