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Open-Access Journal
Opinion Review
Review
Diego García-Compeán, Ángel N Del Cueto-Aguilera, Alan R Jiménez-Rodríguez, José A González-González, Héctor J Maldonado-Garza 
World J Gastroenterol 25(21):2549-2564. Published online Jun 7, 2019. doi: 10.3748/wjg.v25.i21.2549
Alessandro Mannucci, Raffaella Alessia Zuppardo, Riccardo Rosati, Milena Di Leo, José Perea, Giulia Martina Cavestro 
World J Gastroenterol 25(21):2565-2580. Published online Jun 7, 2019. doi: 10.3748/wjg.v25.i21.2565
Minireviews
Alexander Podboy, Joo Ha Hwang, Linda A Nguyen, Patricia Garcia, Thomas A Zikos, Afrin Kamal, George Triadafilopoulos, John O Clarke 
World J Gastroenterol 25(21):2581-2590. Published online Jun 7, 2019. doi: 10.3748/wjg.v25.i21.2581
Basic Study
Case Control Study
Yi-Chen Chou, I-Ha Lao, Pei-Ling Hsieh, Ying-Ying Su, Chee-Wai Mak, Ding-Ping Sun, Ming-Jen Sheu, Hsing-Tao Kuo, Tzu-Ju Chen, Chung-Han Ho, Yu-Ting Kuo 
World J Gastroenterol 25(21):2636-2649. Published online Jun 7, 2019. doi: 10.3748/wjg.v25.i21.2636
Retrospective Study
Observational Study
Marta Abadía, María Luisa Montes, Dolores Ponce, Consuelo Froilán, Miriam Romero, Joaquín Poza, Teresa Hernández, Rubén Fernández-Martos, Antonio Olveira, on behalf of the “La Paz Portal Hypertension” Study Group Investigators 
World J Gastroenterol 25(21):2665-2674. Published online Jun 7, 2019. doi: 10.3748/wjg.v25.i21.2665
Systematic Reviews
Meta-Analysis