1. 2nd Department of Neonatology and NICU Aristotle University of Thessaloniki “Papageorgiou” Hospital Thessaloniki Greece
2. 4th Department of Pediatrics Aristotle University of Thessaloniki “Papageorgiou” Hospital Thessaloniki Greece
3. 1st Department of Obstetrics and Gynecology Aristotle University of Thessaloniki “Papageorgiou” Hospital Thessaloniki Greece
4. 2nd Department of Pediatric Surgery Aristotle University of Thessaloniki “Papageorgiou” Hospital Thessaloniki Greece