GPT and Hepatic fibrosis: Several noninvasive markers have been reported to predict liver fibrosis: AST/ALT ratio (AAR), AST–platelet ratio index (APRI), AAR/platelet ratio index (AARPRI), fibrosis-4 (FIB-4), modified fibrosis-4 (mFIB-4), fibrosis quotient (FibroQ) and the Forns index [15–17].