1. NewCourtland Center for Transitions and Health, University of Pennsylvania School of Nursing, Philadelphia, PA, USA
2. Division of Palliative Medicine, Washington University in St. Louis School of Medicine, St. Louis, MO, USA
3. Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
4. Goldfarb School of Nursing, Barnes Jewish College, St. Louis, MO, USA