3. All patients with an serum glutamate oxaloacetate transaminase (SGOT) > 80 IU/L, serum glutamate pyruvate transaminase (SGPT) > 80 IU/L, bilirubin > 17 μmol/L or creatinine > 110 μmol/L (males) / 95 μmol/L (females) had to be excluded regardless of clinical condition