1. Department of Global Pediatric Medicine, St Jude Children's Research Hospital, Memphis, TN
2. Division of Quality of Life and Palliative Care, Department of Oncology, St Jude Children's Research Hospital, Memphis, TN
3. Drexel University School of Medicine, Philadelphia, PA
4. Hospital de Câncer Infantojuvenil de Barretos, Barretos, Brazil
5. Instituto de Medicina Integral Professor Fernando Figueira, Recife, Brazil
6. Hospital da Criança de Brasília José Alencar, Brasília, Brazil
7. Instituto de Tratamento do Câncer Infantil, Instituto da Criança, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
8. Hospital Israelita Albert Einstein, São Paulo, Brazil
9. Hospital de Clínicas da Universidade Federal de Uberlândia, Uberlândia, Brazil
10. Médecins sans Frontières, Geneva, Switzerland