GPT and fibrosis: RIs: Reference intervals;<br>IFCC: International Federation of Clinical Chemistry and Laboratory Medicine;<br>AST: Aspartate aminotransferase;<br>ALT: Alanine aminotransferase;<br>LDL: Lowdensity lipoproteins;<br>HDL: High-density lipoproteins;<br>VLDL: Low-density lipoproteins;<br>APRI index: AST to Platelet Ratio Index FIB-4: Fibrosis-4;<br>CDL: Clinical Decision Limits;<br>ATP-III: Adult Treatment Panel III;<br>IPH: Institute of Public Health