1. Department of Pediatric Surgery, Celal Bayar University, Manisa, Turkey
2. Department of Clinical Biochemistry, Celal Bayar University, Manisa, Turkey
3. Department of Pathology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
4. Department of Econometrics, Faculty of Economics and Administrative Sciences, Dokuz Eylul University, İzmir, Turkey