1 Department of Pediatrics, Yale School of Medicine, New Haven, CT. Electronic address: [email protected].
2 Department of Anesthesiology & Pain Medicine, University of Washington School of Medicine, Seattle, WA; Seattle Children's Hospital, Treuman Katz Center for Pediatric Bioethics and Palliative Care, Seattle, WA.
3 Department of Pediatrics, Seattle Children's Hospital, Seattle, WA; Department of Pediatrics, University of Washington School of Medicine, Seattle, WA.
4 Department of Pediatrics, West Virginia University School of Medicine, Morgantown, WV.