Biochemical test demonstrated elevated aspartate aminotransferase (AST), gamma-glutamyl transpeptidase (GGT), total bilirubin (Tbil), direct bilirubin (Dbil), indirect bilirubin (Ibil), and total bile acids (TBA), which indicated intrahepatic cholestasis. This evidence concerns the gene GGTLC1 and intrahepatic cholestasis.