Lee, H. H.; Kim, S. K.; Choi, H. H.; Kim, H.-K.; Kim, S. S.; Chae, H.-S.; Cho, H.; Cho, Y.-S. Post-Colonoscopy Colorectal Cancers in Average-Risk Korean Subjects With a Normal Initial Colonoscopy. Turkish Journal of Gastroenterology 2016, 27, 17-22.