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Comparison of receiver-operating characteristiccurves of noninvasive serum markers for discriminating F0F1 vs F2-4 (significant fibrosis, A) and F0-2 vs F3F4 (advanced fibrosis, B) in 36 patients with chronic viral hepatitis. ROC: Receiver-operating characteristic curves; SWE: Shear wave elastography; APRI: Aspartate aminotransferase to platelet ratio index.
