Tuba Kasap1, Serhan Küpeli2. 1. Department of Pediatrics, Faculty of Medicine, Gaziosmanpaşa University, Tokat, Turkey. tubaserdar06@hotmail.com. 2. Department of Pediatric Oncology and Pediatric Bone Marrow Transplantation Unit, Faculty of Medicine, Çukurova University, Adana, Turkey.