Table 3: Liver function parameters in opium-addicted and non-addicted patients with SOD and undergoing ERCP.
Laboratory parameters Opium addicted
( )		Non-addicted
( )		 value
AST 0.051
ALT 0.194
ALP 0.733
Lactate dehydrogenase 0.424
Total bilirubin 0.096
Direct bilirubin 0.064
Pre-ERCP amylase 0.065
Post-ERCP amylase 0.006