Authors: Chiang J Tyng; Maria Fernanda A Almeida; Paula N V Barbosa; Almir G V Bitencourt; José Augusto A G Berg; Macello S Maciel; Felipe J F Coimbra; Luiz Henrique O Schiavon; Maria Dirlei Begnami; Marcos D Guimarães; Charles E Zurstrassen; Rubens Chojniak Journal: World J Gastroenterol Date: 2015-03-28 Impact factor: 5.742