1. Center for Health Equity Research and Promotion, VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania.
2. Division of General Internal Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
3. Department of Health Policy and Management, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
4. Section of Palliative Care and Medical Ethics, University of Pittsburgh, Pittsburgh, Pennsylvania.
5. Institute to Enhance Palliative Care, University of Pittsburgh, Pittsburgh, Pennsylvania.