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Open-Access Journal
Minireviews
Atsunori Tsuchiya, Wei-Yu Lu 
World J Gastroenterol 25(9):1037-1049. Published online Mar 7, 2019. doi: 10.3748/wjg.v25.i9.1037
Basic Study
Aristo Vojdani, Elroy Vojdani 
World J Gastroenterol 25(9):1050-1066. Published online Mar 7, 2019. doi: 10.3748/wjg.v25.i9.1050
Retrospective Study
Shana Kothari, Michael Kalinowski, Matthew Kobeszko, Tarek Almouradi 
World J Gastroenterol 25(9):1080-1087. Published online Mar 7, 2019. doi: 10.3748/wjg.v25.i9.1080
Clinical Trials Study
Peter Deibert, Adhara Lazaro, Denise Schaffner, Aloys Berg, Daniel Koenig, Wolfgang Kreisel, Manfred W Baumstark, Daniel Steinmann, Martin Buechert, Thomas Lange 
World J Gastroenterol 25(9):1116-1131. Published online Mar 7, 2019. doi: 10.3748/wjg.v25.i9.1116
Observational Study
Radek Kroupa, Monika Ondrackova, Petra Kovalcikova, Milan Dastych, Tomas Pavlik, Lumir Kunovsky, Jiri Dolina 
World J Gastroenterol 25(9):1132-1141. Published online Mar 7, 2019. doi: 10.3748/wjg.v25.i9.1132
Systematic Reviews
Adérson Omar Mourão Cintra Damião, Matheus Freitas Cardoso de Azevedo, Alexandre de Sousa Carlos, Marcela Yumi Wada, Taciana Valéria Marcolino Silva, Flávio de Castro Feitosa 
World J Gastroenterol 25(9):1142-1157. Published online Mar 7, 2019. doi: 10.3748/wjg.v25.i9.1142
Meta-Analysis
Konstantinos Triantafyllou, Paraskevas Gkolfakis, Georgios Tziatzios, Ioannis S Papanikolaou, Lorenzo Fuccio, Cesare Hassan 
World J Gastroenterol 25(9):1158-1170. Published online Mar 7, 2019. doi: 10.3748/wjg.v25.i9.1158
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