1. Department of Paediatric Haematology & Oncology; Hospital de Niños “Dr Pedro de Elizalde”; Buenos Aires Argentina
2. Department of Paediatrics; Hospital de Clinicas “Jose de San Martin”; Buenos Aires Argentina
3. Department of Pharmacology; School of Medicine; Universidad de Buenos Aires; Buenos Aires Argentina
4. Department of Clinical Paediatrics; Hospital de Pediatría “Dr Juan P. Garrahan”; Buenos Aires Argentina
5. Department of Paediatric Haematology & Oncology; Hospital de Pediatría “Dr Juan P Garrahan”; Buenos Aires Argentina