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Clinical Characteristics and Long-term Prognosis of Elderly-Onset Ulcerative Colitis in a Population-Based Cohort in the SongpaKangdong District of Seoul, Korea

Park SH, Jeong SK, Lee JH, Rhee KH, Kim YH, Hong SN, Kim KH, Seo SI, Cha JM, Park SY, Park H, Kim JS, Im JP, Yoon H, Kim SH, Jang J, Kim JH, Suh SO, Kim YK, Ye BD, Yang SK, Songpa-Kangdong Inflammatory Bowel Disease (SK-IBD) Study Group

Background/Aims: We aimed to evaluate the clinical characteristics and long-term prognosis of elderly-onset ulcerative colitis (EOUC) in Korean patients over a 30-year period using a wellestablished population-based cohort in the...
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Gastrointestinal and Nongastrointestinal Complications of Esophagogastroduodenoscopy and Colonoscopy in the Real World: A Nationwide Standard Cohort Using the Common Data Model Database

Kim HI, Yoon JY, Kwak MS, Cha JM

Background/Aims: The global trend of an expanding aged population has increased concerns about complications correlated with gastrointestinal (GI) endoscopy in elderly patients; however, there have been few reports published on...
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Impact of COVID-19 on Gastroenterology Fellowship Training

Shin HP, Cha JM, Kim BK, Myung DS, Moon SH, Song MJ, Yoon SB, Yoo IK, Lee JH, Jun BG, Hyun JJ, Education Committee of the Korean Society of Gastroenterology

Background/Aims: The coronavirus disease 2019 (COVID-19) outbreak caused numerous social and cultural changes, but few studies focused on their effects on gastroenterology (GI) fellowship training. This study evaluated the impact...
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Fatal Necrotizing Fasciitis Following Uncomplicated Colonoscopic Polypectomy: A Case Report

Chae MK, Shin SY, Kwak MS, Yoon JY, Kim HI, Cha JM

Necrotizing fasciitis (NF) is a life-threatening infection that can be caused by various procedures or surgery and may develop in healthy elderly patients. Here, we report a case of a...
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Corrigendum: Unmet Psychosocial Needs of Patients Newly Diagnosed with Ulcerative Colitis: Results from the Nationwide Prospective Cohort Study in Korea

Moon JR, Lee CK, Hong SN, Im JP, Ye BD, Cha JM, Jung SA, Lee KM, Park DI, Jeen YT, Park YS, Cheon JH, Kim H, Seo B, Kim Y, Kim HJ, he MOSAIK study group of the Korean Association for the Study of Intestinal Diseases (KASID)

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Deep Neural Network-Based Prediction of the Risk of Advanced Colorectal Neoplasia

Min JK, Yang HJ, Kwak MS, Cho CW, Kim S, Ahn KS, Park SK, Cha JM, Park DI

Background/Aims: Risk prediction models using a deep neural network (DNN) have not been reported to predict the risk of advanced colorectal neoplasia (ACRN). The aim of this study was to...
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Endoscopic Diagnosis of Nonpedunculated Dysplasia during Surveillance of Ulcerative Colitis: A Survey-Based Multinational Study

Yang DH, John S, Mitsuhiro F, Cha JM, Byeon JS, Kim HW, Kim HG, Friedland S, Koh YX, Yoon JY, Kwak MS, Ye BD, Kim J, Yang SK

Background/Aims: Endoscopic diagnosis of dysplasia or colitic cancer in patients with ulcerative colitis (UC) is more challenging than that of colorectal neoplasia in non-colitic patients. We aimed to evaluate the...
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Functional Improvement after Taking Rehabilitation Program in Cerebellar Ataxia in a Patient with Systemic Lupus Erythematosus: a Case Report

Cha JM, Kim HS

Cerebellar involvement in systemic lupus erythematosus (SLE) is rare, occurring in less than 2% of cases, with cerebellar atrophy on brain imaging even rarer. We describe a case of cerebellar...
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Unmet Psychosocial Needs of Patients with Newly Diagnosed Ulcerative Colitis: Results from the Nationwide Prospective Cohort Study in Korea

Moon JR, Lee CK, Hong SN, Im JP, Ye BD, Cha JM, Jung SA, Lee KM, Park DI, Jeen YT, Park YS, Cheon JH, Kim H, Seo B, Kim Y, Kim HJ, the MOSAIK study group of the Korean Association for the Study of Intestinal Diseases (KASID)

Background/Aims: Limited data are available regarding psychosocial distress at the time of diagnosis of ulcerative colitis (UC). We investigated the psychosocial burden and factors related to poor health-related quality of...
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Phytochemical Constituents of Phyllanthus urinaria

Cha JM, Park JE, Choi SU, Lee KR

Extensive column chromatography separation of the MeOH extract from the aerial parts of Phyllanthus urinaria afforded seventeen compounds (1 - 17). The structures of the compounds were elucidated by physicochemical...
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Real-World National Colonoscopy Volume in Korea: A Nationwide Population-Based Study over 12 Years

Cha JM, Kwak MS, Kim HS, Kim SY, Park S, Park GU, Lee JK, Kim SJ, Lee HH, Kim JS, Kim WH

Background/Aims: Little is known about the national colonoscopy volume in Asian countries. This study aimed to assess the national colonoscopy volume in Korea over a 12-year period on the basis...
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Pyoderma Gangrenosum in a Patient with Inactive Ulcerative Colitis

Ki HJ, Yoon JY, Cha JM

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Complementary and alternative medicine in patients with inflammatory bowel disease: hype or evidence?

Cha JM

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The Change of Gastrointestinal Fellowship Program

Cha JM

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Research Using Big Data in Gastroenterology: Based on the Outcomes from Big Data Research Group of the Korean Society of Gastroenterology

Kim JH, Chung H, Kim HS, Kim SY, Cha JM, Lee CK, Park BK, Park S, Big Data Research Group of the Korean Society of Gastroenterology

The Big Data Research Committee of the Korean Society of Gastroenterology conducted activities and researches with three goals. First, it provides the basis for proper and cost-effective treatment of digestive...
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Mucoepidermoid Carcinoma of the Esophagus

Shin SY, Chae MK, Kwak MS, Yoon JY, Jeon JW, Cha JM

Mucoepidermoid carcinoma is a malignant tumor that occurs mainly in the salivary glands of adults and children, but rarely in the esophagus. A surgical resection is the primary treatment for...
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Overview of Deep Learning in Gastrointestinal Endoscopy

Min JK, Kwak MS, Cha JM

Artificial intelligence is likely to perform several roles currently performed by humans, and the adoption of artificial intelligence-based medicine in gastroenterology practice is expected in the near future. Medical image-based...
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Bioreactor systems are essentially required for stem cell bioprocessing

Cha JM, Lee MY, Hong J

As stem cell technologies have rapidly advanced, the stem cell therapy market has been forecast to reach hundreds of millions of USD in market value within the next 5 years....
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Safety and Efficacy of Low-Volume Preparation in the Elderly: Oral Sulfate Solution on the Day before and Split-Dose Regimens (SEE SAFE) Study

Kwak MS, Cha JM, Yang HJ, Park DI, Kim KO, Lee J, Shin JE, Joo YE, Park J, Byeon JS, Kim HG, Intestinal Cancer Study Group of the Korean Association for the Study of Intestinal Diseases (KASID)

BACKGROUND/AIMS: The use of a low-volume bowel cleansing agent is associated with a greater willingness to undergo repeat colonoscopy. Oral sulfate solution (OSS) is a recently approved low-volume agent; however,...
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How to Revitalize the Abdominal Ultrasonography Education Program

Kim BK, Cha JM, Song DS

Abdominal ultrasound examinations are performed by many gastroenterologists in clinical practice, but abdominal ultrasound education has not been included in internal medicine resident or gastroenterology fellowship training courses. Abdominal ultrasound...
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