1. Department of Gerontology, John W. McCormack Graduate School of Policy and Global Studies, University of Massachusetts Boston, Boston, MA, USA
2. Providence VA Medical Center, Providence, RI, USA
3. Center for Gerontology and Healthcare Research, School of Public Health, Brown University, Providence, RI, USA
4. The Warren Alpert Medical School, Brown University, Providence, RI, USA
5. Canandaigua VA Medical Center, Canandaigua, NY, USA
6. Department of Public Health Sciences, School of Medicine and Dentistry, University of Rochester, Rochester, NY, USA