1. Instituto Nacional de Enfermedades Neoplásicas, Lima, Peru
2. essymara@yahoo.com
3. Pan American Health Organization, Lima, Peru
4. Pan American Health Organization, Washington, D.C., United States of America
5. Hospital Nacional Edgardo Rebagliati Martins, Lima, Peru
6. Instituto Regional de Enfermedades Neoplásicas del Sur, Lima, Peru
7. Ronald McDonald House Charities, Lima, Peru
8. Regional Health Management, Lambayeque, Peru
9. Instituto Nacional de Salud del Niño, Lima, Peru
10. Pediatric Oncology Association of Peru, Lima, Peru
11. Ministry of Health of Peru, Lima, Peru
12. National School of Public Health, Lima, Peru
13. Saint Jude Children’s Research Hospital, Memphis, United States of America