W. Kasetsermwiriya, S. Techapongsatorn, A. Tansawet, and S. Lerdsirisophon, “A Randomized Controlled Trial Comparing Intraoperative Cholangiography by Cystic Duct Cholangiography and Cholecystocholangiography During Laparoscopic Cholecystectomy”, Vajira Med J, vol. 58, no. 1, p. 1, Dec. 2014.