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Open-Access Journal
Editorial
Antonio De Vincentis, Umberto Vespasiani-Gentilucci, Anna Sabatini, Raffaele Antonelli-Incalzi, Antonio Picardi 
World J Gastroenterol 25(30):4043-4050. Published online Aug 14, 2019. doi: 10.3748/wjg.v25.i30.4043
Opinion Review
John J McGoran, Mark E McAlindon, Prasad G Iyer, Eric J Seibel, Rehan Haidry, Laurence B Lovat, Sarmed S Sami 
World J Gastroenterol 25(30):4051-4060. Published online Aug 14, 2019. doi: 10.3748/wjg.v25.i30.4051
Review
Damian Jacenik, Ellen J Beswick, Wanda M Krajewska, Eric R Prossnitz 
World J Gastroenterol 25(30):4092-4104. Published online Aug 14, 2019. doi: 10.3748/wjg.v25.i30.4092
Minireviews
Francesco Baratta, Daniele Pastori, Domenico Ferro, Giovanna Carluccio, Giulia Tozzi, Francesco Angelico, Francesco Violi, Maria Del Ben 
World J Gastroenterol 25(30):4172-4180. Published online Aug 14, 2019. doi: 10.3748/wjg.v25.i30.4172
Basic Study
Gao-Liang Zou, Shi Zuo, Shuang Lu, Rui-Han Hu, Yin-Ying Lu, Jing Yang, Kai-Sheng Deng, Ye-Ting Wu, Mao Mu, Juan-Juan Zhu, Jing-Zhang Zeng, Bao-Fang Zhang, Xian Wu, Xue-Ke Zhao, Hai-Yang Li 
World J Gastroenterol 25(30):4222-4234. Published online Aug 14, 2019. doi: 10.3748/wjg.v25.i30.4222
Retrospective Study
Observational Study
Saleh Daher, Tawfik Khoury, Ariel Benson, John R Walker, Oded Hammerman, Ron Kedem, Timna Naftali, Rami Eliakim, Ofer Ben-Bassat, Charles N Bernstein, Eran Israeli 
World J Gastroenterol 25(30):4246-4260. Published online Aug 14, 2019. doi: 10.3748/wjg.v25.i30.4246
Systematic Reviews
Meta-Analysis
Letter to the Editor
Debby Wensink, Margreet AEM Wagenmakers, JH Paul Wilson, Janneke G Langendonk 
World J Gastroenterol 25(30):4292-4293. Published online Aug 14, 2019. doi: 10.3748/wjg.v25.i30.4292
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