1. İzmir Katip Çelebi University Faculty of Medicine, Department of Pediatric Gastroenterology Hepatology and Nutrition, İzmir, Turkey

2. University of Health Science, Tepecik Training and Research Hospital, Clinic of Pediatric Gastroenterology Hepatology and Nutrition, İzmir, Turkey

3. University of Health Science, Tepecik Training and Research Hospital, Clinic of Biochemistry, İzmir, Turkey

4. University of Health Science, Tepecik Training and Research Hospital, Clinic of Pathology, İzmir, Turkey

5. İzmir Katip Çelebi University Faculty of Medicine, Department of Biostatistics, İzmir, Turkey