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Open-Access Journal
Editorial
Review
Priscila Menezes Ferri Liu, Débora Marques de Miranda, Eleonora Druve Tavares Fagundes, Alexandre Rodrigues Ferreira, Ana Cristina Simões e Silva 
World J Gastroenterol 19(28):4455-4463. Published online Jul 28, 2013. doi: 10.3748/wjg.v19.i28.4455
Original Article
Camila Marques, Francielli Licks, Ingrid Zattoni, Beatriz Borges, Luiz Eduardo Rizzo de Souza, Claudio Augusto Marroni, Norma Possa Marroni 
World J Gastroenterol 19(28):4464-4474. Published online Jul 28, 2013. doi: 10.3748/wjg.v19.i28.4464
Brief Article
Vanja Vaccaro, Emilio Bria, Isabella Sperduti, Alain Gelibter, Luca Moscetti, Giovanni Mansueto, Enzo Maria Ruggeri, Teresa Gamucci, Francesco Cognetti, Michele Milella 
World J Gastroenterol 19(28):4511-4519. Published online Jul 28, 2013. doi: 10.3748/wjg.v19.i28.4511
Wen-Guang Wu, Ping Dong, Xiang-Song Wu, Mao-Lan Li, Qi-Chen Ding, Lin Zhang, Jia-Hua Yang, Hao Weng, Qian Ding, Zhu-Jun Tan, Jian-Hua Lu, Jun Gu, Ying-Bin Liu 
World J Gastroenterol 19(28):4559-4567. Published online Jul 28, 2013. doi: 10.3748/wjg.v19.i28.4559
Meta-Analysis
Xiang-Song Wu, Wen-Guang Wu, Mao-Lan Li, Jia-Hua Yang, Qi-Chen Ding, Lin Zhang, Jia-Sheng Mu, Jun Gu, Ping Dong, Jian-Hua Lu, Ying-Bin Liu 
World J Gastroenterol 19(28):4596-4606. Published online Jul 28, 2013. doi: 10.3748/wjg.v19.i28.4596
Xiang-Song Wu, Wen-Guang Wu, Mao-Lan Li, Jia-Hua Yang, Qi-Chen Ding, Lin Zhang, Jia-Sheng Mu, Jun Gu, Ping Dong, Jian-Hua Lu, Ying-Bin Liu 
World J Gastroenterol 19(28):4596-4606. Published online Jul 28, 2013. doi: 10.3748/wjg.v19.i27.4596
Case Report
Letters To The Editor