1. Division of Geriatrics, Vanderbilt University Medical Center, Vanderbilt Hospital at Home , Nashville, TN , USA
2. Department of Pharmaceutical Services, Vanderbilt University Medical Center , Nashville, TN , USA
3. Department of Hospital Medicine, Vanderbilt University Medical Center , Nashville, TN , USA
4. Hospital at Home, Vanderbilt University Medical Center , Nashville, TN , USA
5. Vanderbilt Home Care Services , Nashville, TN , USA
6. Center for Health Services Research, Vanderbilt University Medical Center , Nashville, TN , USA