AST-platelet ratio index in the prediction of significant fibrosis and cirrhosis in patients with chronic hepatitis B - GÜZELBULUT, Fatih; SEZİKLİ, Mesut and AKKAN ÇETİNKAYA, Züleyha and Yaşar, Bülent and ÖZKARA, Selvinaz and KURDAŞ-ÖVÜNÇ, Ayşe Oya (Turkish Journal of Gastroenterology, 2012)