1. Department of Gerontology/Geriatrics/Palliative Care, University of Alabama at Birmingham, Birmingham, Alabama.
2. Center for Palliative Care, University of Alabama at Birmingham, Birmingham, Alabama.
3. Birmingham/Atlanta VA Geriatric Research, Education, and Clinical Center (GRECC), Birmingham VA Medical Center, Birmingham, Alabama.
4. Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama.