1. Pediatric Hemato‐OncologyLa Paz University Hospital Madrid Spain
2. Faculty of MedicineAutonomous University of Madrid
3. Pediatric Hemato‐OncologyHospital Carlos Haya Málaga Spain
4. Pediatric Hemato‐OncologyHospital Niño Jesus Madrid Spain
5. Pediatric Hemato‐OncologyHospital Vall d'Hebron Barcelona Spain
6. Pediatric Hemato‐OncologyHospital Santa Creu I Sant Pau Barcelona Spain
7. Pediatric Hemato‐OncologyHospital La Fe Valencia Spain
8. Pediatric Hemato‐OncologyUniversity of Santiago Clinical Hospital Santiago de Compostela Spain
9. Pediatric Hemato‐OncologyVirgen de la Arrixaca University Clinical Hospital; Biomedical Research Institute of Murcia (IMIB)
10. Pediatric Hemato‐OncologyHospital Virgen del Rocio Sevilla Spain
11. Pediatric Hemato‐OncologyHospital of Salamanca Salamanca Spain
12. Pediatric Hemato‐OncologyHospital Gregorio Marañón Madrid Spain
13. Pediatric Hemato‐OncologyHospital Sant Joan de Déu Barcelona Spain