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Open-Access Journal
Editorial
Minireviews
Basic Study
Case Control Study
Gabriela Helena Rodrigues-Fleming, Glaucia Maria de Mendonça Fernandes, Anelise Russo, Patrícia Matos Biselli-Chicote, João Gomes Netinho, Érika Cristina Pavarino, Eny Maria Goloni-Bertollo 
World J Gastroenterol 24(39):4462-4471. Published online Oct 21, 2018. doi: 10.3748/wjg.v24.i39.4462
Retrospective Cohort Study
Retrospective Study
Observational Study
Mohammad I El Mouzan, Kirill S Korolev, Mohammad A Al Mofarreh, Rajita Menon, Harland S Winter, Ahmad A Al Sarkhy, Scot E Dowd, Ahmad M Al Barrag, Asaad A Assiri 
World J Gastroenterol 24(39):4510-4516. Published online Oct 21, 2018. doi: 10.3748/wjg.v24.i39.4510
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