1. Hackensack University Medical Center, Hackensack, and UMDNJ/New Jersey Medical School, Newark, New Jersey
2. Centre for Gerontology and Health Economics, Stockholm, and Neurotec, Karolinska Institute, Stockholm, Sweden
3. Charles University Prague and Institute of Postgraduate Medical Education, Prague, Czech Republic
4. The Hebrew Rehabilitation Center, Boston, Massachusetts
5. St. Vincent’s Hospital, New York, New York
6. The Hospice of Michigan, Detroit, Michigan
7. Free University Medical Centre, Amsterdam, the Netherlands
8. University of Vermont College of Medicine, Burlington, Vermont
9. Institute for Research in Extramural Medicine, Vrije University Medical Center, Amsterdam, the Netherlands
10. Institute of Gerontology and School of Public Health, University of Michigan, and Ann Arbor VA Medical Center, Ann Arbor, Michigan