1. Department of Pediatric Surgery, School of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
2. Department of Pediatric Nursing, Eskisehir Osmangazi University, Eskisehir, Turkey
3. Department of Mathematics–Computer, Eskisehir Osmangazi University, Eskisehir, Turkey
4. Department of Statistics, Eskisehir Osmangazi University, Eskisehir, Turkey