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Choi, Jae Woo, Sin Hui Park, Sang Yong Choi, Haeng Soo Kim, et Taeg Hyun Kim. "Comparison of Clinical Result between Early Laparoscopic Cholecystectomy and Delayed Laparoscopic Cholecystectomy After Percutaneous Transhepatic Gallbladder Drainage for Patients With Complicated Acute Cholecystitis." Korean J Hepatobiliary Pancreat Surg 2012.

Choi, Jae Woo, et al. "Comparison of Clinical Result between Early Laparoscopic Cholecystectomy and Delayed Laparoscopic Cholecystectomy After Percutaneous Transhepatic Gallbladder Drainage for Patients With Complicated Acute Cholecystitis." Korean J Hepatobiliary Pancreat Surg 2012.