| 2007 | Can we predict spontaneous capsule passage after retention? A nationwide study to evaluate the incidence and clinical outcomes of capsule retention | 심기남 | Article |
| 2010 | Capsule endoscopy in small bowel tumors: A multicenter Korean study | 심기남 | Article |
| 2015 | Clinical Characteristics and Treatment Outcomes of Cryptogenic Multifocal Ulcerous Stenosing Enteritis in Korea | 정성애; 심기남 | Article in Press |
| 2014 | Clinical differences in Clostridium difficile infection based on age: A multicenter study | 정성애 | Article |
| 2015 | Clinical factors and disease course related to diagnostic delay in Korean Crohn's disease patients: Results from the CONNECT study | 정성애; 김성은; 문창모 | Article |
| 2020 | Clinical Features and Outcomes of Tuberculosis in Inflammatory Bowel Disease Patients Treated with Anti-tumor Necrosis Factor Therapy | 정성애 | Article |
| 2011 | Criteria for decision making after endoscopic resection of well-differentiated rectal carcinoids with regard to potential lymphatic spread | 정성애 | Article |
| 2012 | Cytomegalovirus infection in patients with new onset ulcerative colitis: A prospective study | 정성애 | Article |
| 2011 | Development, validation, and responsiveness of a novel disease activity index for intestinal Behcet's disease | 정성애 | Article |
| 2011 | Diagnostic utility of anti-Saccharomyces cerevisiae antibody (ASCA) and Interferon-? assay in the differential diagnosis of Crohn's disease and intestinal tuberculosis | 정성애 | Article |
| 2017 | Diagnostic Yield and Clinical Impact of Video Capsule Endoscopy in Patients with Chronic Diarrhea: A Korean Multicenter CAPENTRY Study | 심기남 | Article |
| 2010 | Effect of probiotic lactobacillus (Lacidofil® Cap) for the prevention of antibiotic-associated diarrhea: A prospective, randomized, double-blind, multicenter study | 정성애; 박혜숙; 김성은 | Article |
| 2014 | Genome-wide association study of Crohn's disease in Koreans revealed three new susceptibility loci and common attributes of genetic susceptibility across ethnic populations | 정성애 | Article |
| 2013 | Incidence and clinical features of Clostridium difficile infection in Korea: A nationwide study | 정성애 | Article |
| 2010 | Inter-observer agreement on the interpretation of capsule endoscopy findings based on capsule endoscopy structured terminology: A multicenter study by the Korean gut image study group | 심기남 | Article |
| 2013 | Learning curve of capsule endoscopy | 김성은 | Article |
| 2011 | Prospective evaluation of the clinical utility of interferon-γ assay in the differential diagnosis of intestinal tuberculosis and Crohn's disease | 정성애 | Article |
| 2021 | The effect of metformin in treatment of adenomas in patients with familial adenomatous polyposis | 문창모 | Article |
| 2012 | The prevalence and efficacy of ganciclovir on steroid-refractory ulcerative colitis with cytomegalovirus infection:a prospective multicenter study | 정성애 | Article |
