Selim KARAYALÇIN
Faculty of Medicine University of Ankara
Ayten ARCASOY
Department of Gastroenteroloji, Faculıy of Medicine Ankara University TURKEY.
Hülya ÇETİNKAYA
Department of Pediatric Hematology. Faculty of Medicine Ankara University, TURKEY
Özden UZUNALİMOĞLU
Faculty of Medicine University of Ankara