1. Meyers Primary Care Institute, a joint endeavor of University of Massachusetts Medical School, Reliant Medical Group, and Fallon Health, Worcester
2. Division of Geriatric Medicine, University of Massachusetts Medical School, Worcester
3. Institute for Clinical and Economic Review, Boston, Massachusetts
4. Evidera, Bethesda, Maryland
5. Department of Psychiatry, Neurology, and Epidemiology and Biostatistics, University of California, San Francisco
6. San Francisco VA Medical Center, San Francisco, California