[1]
S. . Chantawibul, S. . Panpimanmas, T. . Ratanachu-ek, and S. . Paibulsirijit, “Laser Lithotripsy of Difficult Bile Duct Stones Under an Integrated Automatic Stone-Tissue Detection System”, Thai J Surg, vol. 20, no. 1, pp. 15–20, Mar. 1999.