Ünlüsoy Aksu A, Sarı S, Yılmaz G, Eğritaş Gürkan Ö, Demirtaş Z, Dalgıç B. Aspartate aminotransferase-to-platelet ratio index in children with cholestatic liver diseases to assess liver fibrosis. Turk J Pediatr 2015; 57: 492-497.