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Open-Access Journal
Editorial
Lampros Chrysavgis, Eleftheria Ztriva, Adonis Protopapas, Konstantinos Tziomalos, Evangelos Cholongitas 
World J Gastroenterol 26(42):6514-6528. Published online Nov 14, 2020. doi: 10.3748/wjg.v26.i42.6514
Review
Emilio De Raffele, Mariateresa Mirarchi, Dajana Cuicchi, Ferdinando Lecce, Riccardo Casadei, Claudio Ricci, Saverio Selva, Francesco Minni 
World J Gastroenterol 26(42):6529-6555. Published online Nov 14, 2020. doi: 10.3748/wjg.v26.i42.6529
Milena Peruhova, Monika Peshevska-Sekulovska, Boris Krastev, Gabriela Panayotova, Viktoriya Georgieva, Rossitza Konakchieva, Georgi Nikolaev, Tsvetelina Veselinova Velikova 
World J Gastroenterol 26(42):6556-6571. Published online Nov 14, 2020. doi: 10.3748/wjg.v26.i42.6556
Minireviews
Gilmara Pandolfo Zabot, Ornella Cassol, Rogerio Saad-Hossne, Willem Bemelman 
World J Gastroenterol 26(42):6572-6581. Published online Nov 14, 2020. doi: 10.3748/wjg.v26.i42.6572
Basic Study
Retrospective Cohort Study
Observational Study
Marta Hernández-Conde, Elba Llop, Carlos Fernández Carrillo, Beatriz Tormo, Javier Abad, Luis Rodriguez, Christie Perelló, Marta López Gomez, José Luis Martínez-Porras, Natalia Fernández Puga, Maria Trapero-Marugan, Enrique Fraga, Carlos Ferre Aracil, José Luis Calleja Panero 
World J Gastroenterol 26(42):6658-6668. Published online Nov 14, 2020. doi: 10.3748/wjg.v26.i42.6658
Prospective Study
Yoshiki Niwa, Masanao Nakamura, Hiroki Kawashima, Takeshi Yamamura, Keiko Maeda, Tsunaki Sawada, Yasuyuki Mizutani, Eri Ishikawa, Takuya Ishikawa, Naomi Kakushima, Kazuhiro Furukawa, Eizaburo Ohno, Takashi Honda, Masatoshi Ishigami, Mitsuhiro Fujishiro 
World J Gastroenterol 26(42):6669-6678. Published online Nov 14, 2020. doi: 10.3748/wjg.v26.i42.6669
Systematic Reviews
Case Report
Masahiro Hirakawa, Kohichi Takada, Masanori Sato, Chisa Fujita, Naotaka Hayasaka, Takayuki Nobuoka, Shintaro Sugita, Aki Ishikawa, Miyako Mizukami, Hiroyuki Ohnuma, Kazuyuki Murase, Koji Miyanishi, Masayoshi Kobune, Ichiro Takemasa, Tadashi Hasegawa, Akihiro Sakurai, Junji Kato 
World J Gastroenterol 26(42):6689-6697. Published online Nov 14, 2020. doi: 10.3748/wjg.v26.i42.6689
Taro Mashiko, Yoshihito Masuoka, Akira Nakano, Kota Tsuruya, Shunji Hirose, Kenichi Hirabayashi, Tatehiro Kagawa, Toshio Nakagohri 
World J Gastroenterol 26(42):6698-6705. Published online Nov 14, 2020. doi: 10.3748/wjg.v26.i42.6698