1. Hennepin County Medical Center, Minneapolis, Minnesota.
2. Hertzberg Palliative Care Institute, Mount Sinai School of Medicine, New York, New York.
3. Massachusetts General Hospital Palliative Care Service, Harvard Medical School Center for Palliative Care, Harvard Medical School, Boston, Massachusetts.
4. Division of Neoplastic Diseases and Related Disorders, Palliative Care Center, Medical College of Wisconsin, Milwaukee, Wisconsin.
5. Section of Palliative Care and Medical Ethics, Center for Bioethics and Health Law, Institute to Enhance Palliative Care, University of Pittsburgh Cancer Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.