1. Division of Quality-of-life and Palliative Care, Department of Oncology; St. Jude Children’s Research Hospital; Memphis Tennessee
2. Department of Oncology; University of Illinois at Chicago College of Medicine; Chicago Illinois
3. Division of Nursing Research, Department of Pediatric Medicine; St. Jude Children’s Research Hospital; Memphis Tennessee
4. Department of Biostatistics; St. Jude Children’s Research Hospital; Memphis Tennessee
5. Department of Bioethics; National Institute of Health; Bethesda Maryland