1. Cerrahpaşa Faculty of Medicine Department of Pediatrics Division of Pediatric Cardiology İstanbul University‐Cerrahpaşa İstanbul Turkey
2. Erzurum Yakutiye District Health Directorate Erzurum Turkey
3. Faculty of Medicine Department of Pediatrics Division of Pediatric Hematology İstinye University İstanbul Turkey
4. Cemil Taşcıoğlu City Hospital İstanbul Turkey