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Editorial
Minireviews
Isabel Iranzo, Jose María Huguet, Patricia Suárez, Luis Ferrer-Barceló, Vega Iranzo, Javier Sempere 
World J Gastrointest Endosc 10(12):392-399. Published online Dec 16, 2018. doi: 10.4253/wjge.v10.i12.392
Meta-Analysis
Hélcio Pedrosa Brito, Igor Braga Ribeiro, Diogo Turiani Hourneaux de Moura, Wanderley Marques Bernardo, Dalton Marques Chaves, Rogério Kuga, Ethan Dwane Maahs, Robson Kiyoshi Ishida, Eduardo Turiani Hourneaux de Moura, Eduardo Guimarães Hourneaux de Moura 
World J Gastrointest Endosc 10(12):400-421. Published online Dec 16, 2018. doi: 10.4253/wjge.v10.i12.400
Rodrigo Silva de Paula Rocha, Igor Braga Ribeiro, Diogo Turiani Hourneaux de Moura, Wanderley Marques Bernardo, Maurício Kazuyoshi Minata, Flávio Hiroshi Ananias Morita, Júlio Cesar Martins Aquino, Elisa Ryoka Baba, Nelson Tomio Miyajima, Eduardo Guimarães Hourneaux de Moura 
World J Gastrointest Endosc 10(12):422-441. Published online Dec 16, 2018. doi: 10.4253/wjge.v10.i12.422