The diagnostic utility of fibrosis-4 or nonalcoholic fatty liver disease fibrosis score combined with liver stiffness measurement by fibroscan in assessment of advanced liver fibrosis: a biopsy-proven nonalcoholic fatty liver disease study - Jafarov, F; Kaya, E; Bakir, A; Eren, F; Yilmaz, Y (Eur J Gastroenterol Hepatol, 2020)