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Open-Access Journal
Opinion Review
Edoardo Troncone, Alessandro Fugazza, Annalisa Cappello, Giovanna Del Vecchio Blanco, Giovanni Monteleone, Alessandro Repici, Anthony Yuen Bun Teoh, Andrea Anderloni 
World J Gastroenterol 26(16):1847-1860. Published online Apr 28, 2020. doi: 10.3748/wjg.v26.i16.1847
Review
Minireviews
Basic Study
Retrospective Study
Elodie Fallet, Michel Rayar, Amandine Landrieux, Christophe Camus, Pauline Houssel-Debry, Caroline Jezequel, Ludivine Legros, Thomas Uguen, Martine Ropert-Bouchet, Karim Boudjema, Dominique Guyader, Edouard Bardou-Jacquet 
World J Gastroenterol 26(16):1938-1949. Published online Apr 28, 2020. doi: 10.3748/wjg.v26.i16.1938
Observational Study
Marcello Maida, Emanuele Sinagra, Gaetano Cristian Morreale, Sandro Sferrazza, Giuseppe Scalisi, Dario Schillaci, Marco Ventimiglia, Fabio Salvatore Macaluso, Giovanni Vettori, Giuseppe Conoscenti, Concetta Di Bartolo, Serena Garufi, Domenico Catarella, Michele Manganaro, Clara Maria Virgilio, Salvatore Camilleri 
World J Gastroenterol 26(16):1950-1961. Published online Apr 28, 2020. doi: 10.3748/wjg.v26.i16.1950
Randomized Clinical Trial
Case Report
Helene Hjorth Vindum, Jørgen S Agnholt, Anders Winther Moelby Nielsen, Mette Bak Nielsen, Henrik Schmidt 
World J Gastroenterol 26(16):1971-1978. Published online Apr 28, 2020. doi: 10.3748/wjg.v26.i16.1971
Apolonia Novillo, María Gaibar, Alicia Romero-Lorca, María Fuencisla Gilsanz, Laura Beltrán, Miguel Galán, Beatriz Antón, Diego Malón, Amalia Moreno, Ana Fernández-Santander 
World J Gastroenterol 26(16):1979-1986. Published online Apr 28, 2020. doi: 10.3748/wjg.v26.i16.1979