1. Division of Bioethics and Palliative Care, Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington, USA.
2. Treuman Katz Center for Pediatric Bioethics and Palliative Care, Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, Washington, USA.
3. Biostatistics Epidemiology and Analytics for Research (BEAR) Core, Seattle Children's Research Institute, Seattle, Washington, USA.
4. Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, Washington, USA.
5. Division of Critical Care, Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington, USA.
6. Division of Psychosocial Oncology and Palliative Care, Dana Farber Cancer Institute, Boston, Massachusetts, USA.
7. Palliative Care and Resilience Lab, Boston Children's Hospital, Boston, Massachusetts, USA.
8. Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA.