1. Department of Veterans Affairs, Birmingham/Atlanta Geriatric Research, Education, and Clinical Center, Birmingham VA Medical Center, Birmingham, Alabama.
2. Center for Palliative and Supportive Care, University of Alabama at Birmingham, Birmingham, Alabama.
3. School of Nursing, University of Alabama at Birmingham, Birmingham, Alabama.
4. Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama.
5. William Jennings Bryan Dorn VA Medical Center, Columbia, South Carolina.