1. Division of Geriatric Medicine, Department of Medicine University of Massachusetts Medical School Worcester Massachusetts USA
2. The Meyers Primary Care Institute a joint endeavor of the University of Massachusetts Medical School, Reliant Medical Group, and Fallon Health Worcester MA USA
3. Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research Food and Drug Administration Silver Spring Maryland USA
4. Department of Population Medicine Harvard Pilgrim Health Care Institute, Harvard Medical School Boston Massachusetts USA
5. Division of Hematology and Oncology, Department of Medicine UMass Memorial Medical Center Worcester Massachusetts USA
6. Division of Medicine Massachusetts General Hospital Boston Massachusetts USA
7. Aetna, a CVS Health company Hartford Connecticut USA
8. Humana Healthcare Research, Inc. (HHR) Sugar Land Texas USA