1. Translational Research Group in Pediatric Oncology, Haematopoietic Transplantation and Cell Therapy, Hospital La Paz Institute for Health Research, IdiPAZ, La Paz University Hospital, 28046 Madrid, Spain
2. Department of Pediatric Hemato-Oncology, La Paz University Hospital, 28046 Madrid, Spain
3. Department of Orthopedic Surgery and Traumatology, La Paz University Hospital, 28046 Madrid, Spain
4. School of Medicine, Autonomous University of Madrid, 28046 Madrid, Spain