Hepatitis B Foundation - Please discuss using the FIB-4 calculation with your doctor. You can find the calculator online, where you can plug in your ALT, AST, age and platelet count. There
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Table 1 from AST to Platelet Ratio Index and fibrosis 4 calculator scores for non-invasive assessment of hepatic fibrosis in patients with non-alcoholic fatty liver disease. | Semantic Scholar
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