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Open-Access Journal
Retrospective Cohort Study
Mamoon Ur Rashid, Neelam Khetpal, Hammad Zafar, Saeed Ali, Evgeny Idrisov, Yuan Du, Assaf Stein, Deepanshu Jain, Muhammad Khalid Hasan 
World J Gastrointest Endosc 12(7):198-211. Published online Jul 16, 2020. doi: 10.4253/wjge.v12.i7.198
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