1. Center for Cancer and Blood Disorders Center, Seattle Children's Hospital, Seattle, Washington, USA.
2. Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington, USA.
3. Palliative Care and Resilience Research Lab, Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, Washington, USA.
4. Cambia Palliative Care Center of Excellence, University of Washington, Seattle, Washington, USA.
5. Biostatistics Epidemiology and Analytics for Research (BEAR) Core, Center for Clinical and Translational Research, Seattle Children's Research Institute, Seattle, Washington, USA.