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