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Open-Access Journal
Minireviews
David Friedel, Xiaocen Zhang, Stavros Nicholas Stavropoulos 
World J Gastrointest Endosc 12(4):119-127. Published online Apr 16, 2020. doi: 10.4253/wjge.v12.i4.119
Observational Study
Kenichiro Majima, Takeshi Shimamoto, Yosuke Muraki 
World J Gastrointest Endosc 12(4):128-137. Published online Apr 16, 2020. doi: 10.4253/wjge.v12.i4.128
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