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Open-Access Journal
Editorial
Review
Minireviews
Basic Study
Antonio Madejón, Míriam Romero, Ángela Hernández, Araceli García-Sánchez, Marta Sánchez-Carrillo, Antonio Olveira, Javier García-Samaniego 
World J Gastroenterol 22(11):3165-3174. Published online Mar 21, 2016. doi: 10.3748/wjg.v22.i11.3165
Retrospective Cohort Study
Retrospective Study
Alfredo Di Leo, Gabriella Nesi, Mariabeatrice Principi, Domenico Piscitelli, Bruna Girardi, Maria Pricci, Giuseppe Losurdo, Andrea Iannone, Enzo Ierardi, Francesco Tonelli 
World J Gastroenterol 22(11):3202-3211. Published online Mar 21, 2016. doi: 10.3748/wjg.v22.i11.3202
Jae Hyun Kim, Seun Ja Park, Jong Hoon Lee, Tae Oh Kim, Hyun Jin Kim, Hyung Wook Kim, Sang Heon Lee, Dong Hoon Baek, Busan Ulsan Gyeongnam Intestinal Study Group Society (BIGS) 
World J Gastroenterol 22(11):3220-3226. Published online Mar 21, 2016. doi: 10.3748/wjg.v22.i11.3220
Observational Study
Noriko Ihana-Sugiyama, Naoyoshi Nagata, Ritsuko Yamamoto-Honda, Eiko Izawa, Hiroshi Kajio, Takuro Shimbo, Masafumi Kakei, Naomi Uemura, Junichi Akiyama, Mitsuhiko Noda 
World J Gastroenterol 22(11):3252-3260. Published online Mar 21, 2016. doi: 10.3748/wjg.v22.i11.3252
Prospective Study
Case Report
Letters To The Editor