1. Research Unit Department of Pediatrics Faculty of Medicine Hospital Dr. Luis Calvo Mackenna Universidad de Chile Santiago Chile
2. Research and Teaching Unit Arturo López Pérez Foundation Oncology Institute Santiago Chile
3. Academic Department Clínica Las Condes Santiago Chile
4. Department of Pediatrics, Oncology Unit Hospital Dr. Luis Calvo Mackenna Santiago Chile
5. Department of Pediatrics, Oncology Unit Hospital Exequiel González Cortés Santiago Chile
6. Infectious Diseases Unit Department of Pediatrics Faculty of Medicine Hospital Dr. Luis Calvo Mackenna Universidad de Chile Santiago Chile