1. Department of Pediatrics, Faculty of Medicine, “Gr. T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
2. Department of Pediatrics, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
3. Department of Pediatric Cardiology, “Marie Curie” Emergency Children’s Hospital, 041451 Bucharest, Romania
4. Cardio-Thoracic Department, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
5. Clinical Emergency Hospital, 014461 Bucharest, Romania
6. “Diabnutrimed” Medical Center, 020359 Bucharest, Romania
7. “Sfanta Maria” Clinical Emergency Hospital for Children, 700309 Iasi, Romania