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Open-Access Journal
Minireviews
Breno Bittencourt de Brito, Filipe Antônio França da Silva, Aline Silva Soares, Vinícius Afonso Pereira, Maria Luísa Cordeiro Santos, Mariana Miranda Sampaio, Pedro Henrique Moreira Neves, Fabrício Freire de Melo 
World J Gastroenterol 25(37):5578-5589. Published online Oct 7, 2019. doi: 10.3748/wjg.v25.i37.5578
Basic Study
Case Control Study
Retrospective Cohort Study
Retrospective Study
Observational Study
Salvatore Magrì, Danilo Paduano, Fabio Chicco, Arianna Cingolani, Cristiana Farris, Giovanna Delogu, Francesca Tumbarello, Mariantonia Lai, Alessandro Melis, Laura Casula, Massimo C Fantini, Paolo Usai 
World J Gastroenterol 25(37):5676-5686. Published online Oct 7, 2019. doi: 10.3748/wjg.v25.i37.5676
Prospective Study
Breno Boueri Affonso, Francisco Leonardo Galastri, Joaquim Mauricio da Motta Leal Filho, Felipe Nasser, Priscila Mina Falsarella, Rafael Noronha Cavalcante, Marcio Dias de Almeida, Guilherme Eduardo Gonçalves Felga, Leonardo Guedes Moreira Valle, Nelson Wolosker 
World J Gastroenterol 25(37):5687-5701. Published online Oct 7, 2019. doi: 10.3748/wjg.v25.i37.5687
Meta-Analysis