1. Department of Psychosocial Oncology and Palliative Care, Dana-Farber Cancer Institute, Boston, MA, USA
2. Division of Quality of Life and Palliative Care, Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
3. Department of Volunteer Services, St. Jude Children’s Research Hospital, Memphis, TN, USA
4. Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, TN, USA
5. Division of Palliative Care, University of Tennessee Health Science Center, Memphis, TN, USA