1 Geriatric Research, Education, and Clinical Center, Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee, USA.
2 Department of Medicine, Division of Geriatric Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
3 Department of Pediatrics, Division of Hospital Medicine, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee, USA.
4 Office of Undergraduate Medical Education, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
5 Department of Medicine, Division of Gerontology and Geriatric Medicine, Atrium Health Wake Forest Baptist, Winston-Salem, North Carolina, USA.
6 Department of Biostatistics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
7 Vanderbilt Home Care Services, Nashville, Tennessee, USA.
8 Department of Medical Education and Administration, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
9 Department of Medicine, Division of General Internal Medicine and Public Health, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.