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Open-Access Journal
Editorial
Opinion Review
Andrea Anderloni, Edoardo Troncone, Alessandro Fugazza, Annalisa Cappello, Giovanna Del Vecchio Blanco, Giovanni Monteleone, Alessandro Repici 
World J Gastroenterol 25(29):3857-3869. Published online Aug 7, 2019. doi: 10.3748/wjg.v25.i29.3857
Review
Massimo Giuseppe Colombo, Erkin Isakovich Musabaev, Umed Yusupovich Ismailov, Igor A Zaytsev, Alexander V Nersesov, Igor Anatoliyevich Anastasiy, Igor Alexandrovich Karpov, Olga A Golubovska, Kulpash S Kaliaskarova, Ravishankar AC, Sanjay Hadigal 
World J Gastroenterol 25(29):3897-3919. Published online Aug 7, 2019. doi: 10.3748/wjg.v25.i29.3897
Minireviews
Basic Study
Zhi-Chao Yu, Yong-Xin Cen, Ben-Hua Wu, Cheng Wei, Feng Xiong, De-Feng Li, Ting-Ting Liu, Ming-Han Luo, Li-Liangzi Guo, Ying-Xue Li, Li-Sheng Wang, Jian-Yao Wang, Jun Yao 
World J Gastroenterol 25(29):3956-3971. Published online Aug 7, 2019. doi: 10.3748/wjg.v25.i29.3956
Retrospective Cohort Study
Retrospective Study
Observational Study
Olivier Bouché, Meher Ben Abdelghani, Jean-Luc Labourey, Simon Triby, René-Jean Bensadoun, Thomas Jouary, Gaétan Des Guetz 
World J Gastroenterol 25(29):4007-4018. Published online Aug 7, 2019. doi: 10.3748/wjg.v25.i29.4007
Systematic Review