1. Geriatric Research and Clinical Center (GRECC), George E. Wahlen Veteran Affairs Medical Center, Salt Lake City, Utah, USA
2. Informatics, Decision-Enhancement, and Analytic Sciences (IDEAS) Center of Innovation, George E. Wahlen Veterans Affairs Medical Center, Salt Lake City, Utah, USA
3. Division of Geriatrics, Department of Internal Medicine, University of Utah, Salt Lake City, Utah, USA
4. Department of Biomedical Informatics, University of Utah, Salt Lake City, Utah, USA
5. Department of Veterans Affairs Office of Health Informatics, Washington, District of Columbia, USA