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Open-Access Journal
Review
Juan Manuel Sanchez-Hidalgo, Manuel Duran-Martinez, Rafael Molero-Payan, Sebastian Rufian-Peña, Alvaro Arjona-Sanchez, Angela Casado-Adam, Antonio Cosano-Alvarez, Javier Briceño-Delgado 
World J Gastroenterol 24(18):1925-1941. Published online May 14, 2018. doi: 10.3748/wjg.v24.i18.1925
Mihaela Chivu-Economescu, Lilia Matei, Laura G Necula, Denisa L Dragu, Coralia Bleotu, Carmen C Diaconu 
World J Gastroenterol 24(18):1942-1961. Published online May 14, 2018. doi: 10.3748/wjg.v24.i18.1942
Minireviews
Kazuki Takakura, Tsunekazu Oikawa, Yoichi Tomita, Yusuke Mizuno, Masanori Nakano, Chisato Saeki, Yuichi Torisu, Masayuki Saruta 
World J Gastroenterol 24(18):1989-1994. Published online May 14, 2018. doi: 10.3748/wjg.v24.i18.1989
Basic Study
Maria Carolina S Mendes, Daiane SM Paulino, Sandra R Brambilla, Juliana A Camargo, Gabriela F Persinoti, José Barreto C Carvalheira 
World J Gastroenterol 24(18):1995-2008. Published online May 14, 2018. doi: 10.3748/wjg.v24.i18.1995
Runar J Strand-Amundsen, Henrik M Reims, Finn P Reinholt, Tom E Ruud, Runkuan Yang, Jan O Høgetveit, Tor I Tønnessen 
World J Gastroenterol 24(18):2009-2023. Published online May 14, 2018. doi: 10.3748/wjg.v24.i18.2009
Clinical Trials Study
Observational Study
Neera Gupta, Robert H Lustig, Cewin Chao, Eric Vittinghoff, Howard Andrews, Cheng-Shiun Leu 
World J Gastroenterol 24(18):2036-2046. Published online May 14, 2018. doi: 10.3748/wjg.v24.i18.2036
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