1. Department of Pediatric Hematology-Oncology, Ministry of Health Okmeydani Training and Research Hospital, Istanbul, Turkey
2. Department of Pediatric Hematology-Oncology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
3. Department of Pediatric Hematology-Oncology, Faculty of Medicine, Afyonkarahisar University of Health Sciences, Istanbul, Turkey