1. Corporal Michael J. Crescenz VA Medical Center, Philadelphia, Pennsylvania
2. University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania
3. The Mountain-Whisper-Light Statistics, Seattle, Washington
4. University of Iowa College of Nursing, Iowa City, Iowa
5. Tuscaloosa VA Medical Center, Tuscaloosa, Alabama
6. Department of Psychology, Alabama Research Institute on Aging, The University of Alabama, Tuscaloosa, Alabama
7. Division of Gerontology, Geriatrics, and Palliative Care, University of Alabama at Birmingham, Birmingham, Alabama, USA