Korean Society of Gastrointestinal Endoscopy, Clinical Endoscopy, 1(49), p. 100-100, 2016
DOI: 10.5946/ce.2016.49.1.100
Korean Society of Gastrointestinal Endoscopy, Clinical Endoscopy, 6(48), p. 516-521, 2015
DOI: 10.5946/ce.2015.48.6.516
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