Park JI, M.d. , Park JH, M.d. , Ju YT, M.d. , Jeong CY, M.d. , Jung EJ, M.d. , Lee YJ, M.d. , Choi SK, M.d. , Ha WS, M.d. , Park ST, M.d. , Kim1 TH, M.d. , Lee1 OJ, M.d. , Hong* SC, Ph.d. .  The Analysis of the Cholesterol Contents of Intrahepatic Duct Stones in the West Gyeongnam Region.  Ann Hepatobiliary Pancreat Surg 2007;11:22-27.