1. Ira Kodner Professor of Research in Supportive Care, Goldfarb School of Nursing, Division of Palliative Medicine, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
2. Division of Palliative Medicine, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
3. Goldfarb School of Nursing, Division of Palliative Medicine, Washington University in St Louis, St. Louis, MO, USA
4. Stokes Family Endowed Chair and Chief, Division of Palliative Medicine, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
5. Penn Integrates Knowledge University Professor, Department of Biobehavioral and Health Sciences, School of Nursing and Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA