1. Department of Hematology-Oncology; Hospital de Pediatría Prof. Dr. JP Garrahan; Buenos Aires Argentina
2. Unit of Clinical Pharmacokinetics; Hospital de Pediatría Prof. Dr. JP Garrahan; Buenos Aires Argentina
3. Department of Neuroradiology; Hospital de Pediatría Prof. Dr. JP Garrahan; Buenos Aires Argentina
4. Department of Ophthalmology; Hospital de Pediatría Prof. Dr. JP Garrahan; Buenos Aires Argentina
5. Department of Pathology; Hospital de Pediatría Prof. Dr. JP Garrahan; Buenos Aires Argentina
6. National Scientific and Technical Research Council (CONICET); Buenos Aires Argentina