1. Department of Medicine, Virginia Tech Carilion School of Medicine, Roanoke, Virginia.
2. Geriatrics Extended Care, Salem Veterans Affairs Medical Center, Salem, Virginia.
3. Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland.
4. Baltimore Veterans Affairs Medical Center Geriatric Research, Education, and Clinical Center at the Veterans Affairs Maryland Health Care System, Baltimore, Maryland.
5. Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee.