Seo, M. S., Moon, J. H., Choi, H. J., Kim, H. K., Cheon, Y. K., Cho, Y. D., & Lee, M. S. (2010). Bile-Duct Stone Removal under Direct Transnasal Cholangioscopy Using an Ultraslim Upper Endoscope. The Korean Society of Gastroenterology; the Korean Society of Gastrointestinal Endoscopy; the Korean Association for the Study of the Liver; the Korean Society of Neurogastroenterology and Motility; Korean Association for the Study of Intestinal Diseases; Korean College of Helicobacter and Upper Gastrointestinal Research; Korean Society of Pancreatobiliary Diseases.

Seo, Mi Seon, Jong Ho Moon, Hyun Jong Choi, Hyung Ki Kim, Young Koog Cheon, Young Deok Cho, a Moon Sung Lee. Bile-Duct Stone Removal Under Direct Transnasal Cholangioscopy Using an Ultraslim Upper Endoscope. The Korean Society of Gastroenterology; the Korean Society of Gastrointestinal Endoscopy; the Korean Association for the Study of the Liver; the Korean Society of Neurogastroenterology and Motility; Korean Association for the Study of Intestinal Diseases; Korean College of Helicobacter and Upper Gastrointestinal Research; Korean Society of Pancreatobiliary Diseases, 2010.

Seo, Mi Seon, et al. Bile-Duct Stone Removal Under Direct Transnasal Cholangioscopy Using an Ultraslim Upper Endoscope. The Korean Society of Gastroenterology; the Korean Society of Gastrointestinal Endoscopy; the Korean Association for the Study of the Liver; the Korean Society of Neurogastroenterology and Motility; Korean Association for the Study of Intestinal Diseases; Korean College of Helicobacter and Upper Gastrointestinal Research; Korean Society of Pancreatobiliary Diseases, 2010.