The differences in ALT were recorded between precirrhotic hepatitis (PCH) and other groups (with LC P = 0.027 and with HCC P = 0.003) and also the differences in AST levels were recorded between PCH and other groups (with LC P = 0.014 and with HCC P = 0.02). This evidence concerns the gene GPT and laryngotracheoesophageal cleft.