We note liver function tests to be markedly deranged for patients with choledocholithiasis, with the median values of bilirubin 2.4 times higher, AST 7.2 times higher, ALT 7.8 times higher, ALP 1.2 times higher, and GGT 5.6 times higher than in patients without choledocholithiasis. This evidence concerns the gene GPT and choledocholithiasis.