1. New York Medical College, Valhalla, New York and Saint Vincents Medical Center, New York, New York
2. Division of General Internal Medicine, Chief, Section of Palliative Care and Medical Ethics, Center for Bioethics and Health Law, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
3. Department of Medicine and Institute on Care at End of Life, Duke University, Durham, North Carolina and Program on the Medical Encounter and Palliative Care, VA Medical Center, Durham, North Carolina