1. Umeå University, Umeå, Sweden
2. La Trobe University, Victoria, Australia
3. The University of North Carolina at Chapel Hill, NC, USA
4. São Paulo State University (UNESP), Brazil
5. Duke University, Durham, NC, USA
6. University of Nottingham, Nottingham, UK
7. Newcastle University, Newcastle, UK
8. RTI International, Washington, DC, USA
9. The Hong Kong Polytechnic University, Kowloon, Hong Kong
10. Toronto Rehabilitation Institute-UHN, Ontario, Canada
11. City, University of London, UK
12. Maastricht University, Maastricht, The Netherlands
13. American Health Care Association/National Center for Assisted Living, Washington, DC, USA
14. Cardiff University, Cardiff, UK
15. Karolinska Institutet, Stockholm, Sweden
16. New York University, New York City, USA
17. University of Basel, Basel, Switzerland