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Open-Access Journal
Minireviews
Cosmas Rinaldi Adithya Lesmana, Maria Satya Paramitha, Laurentius Adrianto Lesmana 
World J Gastrointest Endosc 13(7):198-209. Published online Jul 16, 2021. doi: 10.4253/wjge.v13.i7.198
Giuseppe Grassi, Ilaria Lenci, Alessandro Signorello, Martina Milana, Leonardo Baiocchi 
World J Gastrointest Endosc 13(7):210-220. Published online Jul 16, 2021. doi: 10.4253/wjge.v13.i7.210
Retrospective Study
David John Werner, Till Baar, Ralf Kiesslich, Nicolai Wenzel, Nael Abusalim, Achim Tresch, Johannes Wilhelm Rey 
World J Gastrointest Endosc 13(7):221-232. Published online Jul 16, 2021. doi: 10.4253/wjge.v13.i7.221
Case Report
Yuichiro Hirai, Atsuto Kayashima, Yoshihiro Nakazato, Ai Fujimoto 
World J Gastrointest Endosc 13(7):233-237. Published online Jul 16, 2021. doi: 10.4253/wjge.v13.i7.233
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