1. Department of Pediatrics, Pediatric Palliative Care, University of Nebraska Medical Center, Omaha, NE, USA
2. Veterans Health Affairs, National Center for Ethics in Healthcare, Washington, DC, USA
3. College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
4. Department of Medical Ethics and Department of Pediatrics, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
5. Department of Medical Ethics and Health Policy, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA