1. Department of Pharmaceutical Services, Vanderbilt University Medical Center, Nashville, TN, USA
2. Critical Illness, Brain Dysfunction, and Survivorship (CIBS) Center, Nashville, TN, USA
3. Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
4. Division of Anesthesiology Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
5. Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
6. Center for Health Services Research, Vanderbilt University Medical Center, Nashville, TN, USA
7. Center for Quality Aging – All at Vanderbilt University Medical Center, Nashville, TN, USA
8. Geriatric Research Education and Clinical Center (GRECC) Service at the Department of Veterans Affairs Medical Center, Tennessee Valley Healthcare System, Nashville, TN, USA
9. Anesthesia Service at the Department of Veterans Affairs Medical Center, Tennessee Valley Healthcare System, Nashville, TN, USA