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Open-Access Journal
Editorial
Wiriyaporn Ridtitid, Rungsun Rerknimitr 
World J Gastrointest Endosc 4(5):157-161. Published online May 16, 2012. doi: 10.4253/wjge.v4.i5.157
Topic Highlight
Review
Gerasimos Stefanidis, Christos Christodoulou, Spilios Manolakopoulos, Ram Chuttani 
World J Gastrointest Endosc 4(5):167-179. Published online May 16, 2012. doi: 10.4253/wjge.v4.i5.167
Brief Article
Case Report
Takayoshi Suzuki, Masashi Matsushima, Yoshitaka Arase, Mia Fujisawa, Ichiro Okita, Muneki Igarashi, Jun Koike, Tetsuya Mine 
World J Gastrointest Endosc 4(5):194-196. Published online May 16, 2012. doi: 10.4253/wjge.v4.i5.194