1. Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
2. III-rd Medical Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
3. Pediatrics, Faculty of General Medicine, Ovidius University, 900470 Constanta, Romania
4. Department of Surgery II—Pediatric Surgery, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
5. Medical Department, Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania