Gut and Liver 2010; 4(4): 481-487 https://doi.org/10.5009/gnl.2010.4.4.481 A Matched Case-Control Study Using the Propensity Score on Differences in the Characteristics of Colorectal Polyps between Younger and Older Koreans: Proximal Shift in the Distribution of Colorectal Polyps among Older Koreans
Yong Gil Kim*, Byung-Ik Jang*, Dong Hee Kim*, Hee Jung Moon*, Hee Ju Oh*, Tae Nyeun Kim*, and Hye Mi Lee†
*Department of Internal Medicine, Yeungnam University College of Medicine, and †Department of Family Medicine, Daegu Catholic University College of Medicine, Daegu, Korea
© The Korean Society of Gastroenterology, the Korean Society of Gastrointestinal Endoscopy, the Korean Society of Neurogastroenterology and Motility, Korean College of Helicobacter and Upper Gastrointestinal Research, Korean Association the Study of Intestinal Diseases, the Korean Association for the Study of the Liver, Korean Pancreatobiliary Association, and Korean Society of Gastrointestinal Cancer. All rights reserved.