Affiliation: | 1. Fourth Department of Pediatrics, Medical School, General Hospital “Papageorgiou”, Aristotle University of Thessaloniki, Thessaloniki, Greece;2. Second Department of Pediatrics, Medical School, University General Hospital “AHEPA”, Aristotle University of Thessaloniki, Thessaloniki, Greece;3. Department of Pediatric Cardiology, “Onassis” Cardiac Surgery Center, Athens, Greece |