1. Hacettepe University Faculty of Medicine Ankara Turkey
2. Umraniye Training and Research Hospital Istanbul Turkey
3. Dr. Sami Ulus Maternity and Child Health and Diseases Research and Training Hospital Ankara Turkey
4. Children's Hospital Zagreb, Zagreb, Croatia, School of Medicine, University of Zagreb, Zagreb, Croatia, and Faculty of Medicine, Josip Juraj Strossmayer, Josipa Huttlera 4, University of Osijek Osijek Croatia
5. Erciyes University Faculty of Medicine Kayseri Turkey
6. Dana Dwek Children's Hospital, Tel Aviv Medical Center Tel Aviv Israel
7. Ankara City Hospital Ankara Turkey
8. Istanbul University Faculty of Medicine Istanbul Turkey
9. Istanbul Medeniyet University, Goztepe Research and Training Hospital Istanbul Turkey
10. National Kapodistrian University School of Medicine, “P. A. Kyriakou” Children's Hospital Athens Greece
11. Kocaeli University Faculty of Medicine Kocaeli Turkey
12. University of Palermo Palermo Italy
13. Aydın Obstetrics and Pediatrics Hospital Aydın Turkey
14. University of Zagreb School of Medicine, University Hospital Centre Zagreb Zagreb Croatia