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Open-Access Journal
Hira Imad Cheema, Benjamin Tharian, Sumant Inamdar, Mauricio Garcia-Saenz-de-Sicilia, Cem Cengiz 
World J Gastrointest Endosc 15(5):319-337. Published online May 16, 2023. doi: 10.4253/wjge.v15.i5.319
Eoin Keating, Gayle Bennett, Michelle A Murray, Sinead Ryan, John Aird, Donal B O'Connor, Dermot O'Toole, Conor Lahiff 
World J Gastrointest Endosc 15(5):368-375. Published online May 16, 2023. doi: 10.4253/wjge.v15.i5.368
Case Control Study
Retrospective Cohort Study
Retrospective Study
Eun Jeong Choi, Sam Ryong Jee, Sang Heon Lee, Jun Sik Yoon, Seung Jung Yu, Jong Hyun Lee, Han Byul Lee, Sang Wook Yi, Myeong Pyo Kim, Byung Cheol Chung, Hong Sub Lee 
World J Gastrointest Endosc 15(5):397-406. Published online May 16, 2023. doi: 10.4253/wjge.v15.i5.397
Observational Study