1. Department of Pediatrics, Faculty of Medicine, “Ovidius” University, 900470 Constanta, Romania
2. Department of Pediatrics, County Clinical Emergency Hospital of Constanta, 900591 Constanta, Romania
3. Department of Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
4. Faculty of Medicine, “Ovidius” University, 900470 Constanta, Romania
5. National Institute of Diabetes, Nutrition and Metabolic Diseases “N.C. Paulescu”, 020475 Bucharest, Romania
6. Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania