2 Seven Hills Pediatric Center, Groton, Massachusetts.
3 Division of General Pediatrics, Department of Pediatrics, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts.
4 Division of Bioethics and Palliative Care, Department of Pediatrics, University of Washington School of Medicine, Treuman Katz Center for Pediatric Bioethics and Palliative Care and Resilience Laboratory, Center for Clinical and Translational Research, Seattle Children's Hospital and Research Institute, Seattle, Washington.