1 Ruth M. Colket Endowed Chair in Pediatric Nursing, Research Institute, Children's Hospital of Philadelphia, Philadelphia, USA. Curley@UPENN.edu.
2 Family and Community Health, University of Pennsylvania School of Nursing, Claire M. Fagin Hall, Room 425, 418 Curie Boulevard, Philadelphia, PA, 19104-4217, USA. Curley@UPENN.edu.
3 Pediatric Intensive Care Unit, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
4 Hillman Scholar in Nursing Innovation, School of Nursing, University of Pennsylvania, Philadelphia, PA, USA.
5 Department of Psychiatry, Boston Children's Hospital, Boston, USA.
6 Center for Bioethics, Harvard Medical School, Boston, MA, USA.