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Open-Access Journal
Retrospective Study
Stefano Cosma, Paolo Petruzzelli, Saverio Danese, Chiara Benedetto 
World J Gastrointest Endosc 9(5):211-219. Published online May 16, 2017. doi: 10.4253/wjge.v9.i5.211
Observational Study
Meta-Analysis
Arun P Shanmuganandan, Muhammad R Sameem Siddiqui, Nicholas Farkas, Kiran Sran, Rhys Thomas, Said Mohamed, Robert I Swift, Al Mutaz Abulafi 
World J Gastrointest Endosc 9(5):228-237. Published online May 16, 2017. doi: 10.4253/wjge.v9.i5.228
Case Report