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Open-Access Journal
Editorial
Letiția Adela Maria Streba, Cristin Constantin Vere, Ion Rogoveanu, Costin Teodor Streba 
World J Gastroenterol 21(14):4103-4110. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4103
Review
Minireviews
Marwan Ghosn, Hampig Raphael Kourie, Elie El Rassy, Ralph Chebib, Fadi El Karak, Colette Hanna, Dolly Nasr 
World J Gastroenterol 21(14):4121-4125. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4121
Basic Study
Jun-Xiao Zhang, Lei Fu, Richarda M de Voer, Marc-Manuel Hahn, Peng Jin, Chen-Xi Lv, Eugène TP Verwiel, Marjolijn JL Ligtenberg, Nicoline Hoogerbrugge, Roland P Kuiper, Jian-Qiu Sheng, Ad Geurts van Kessel 
World J Gastroenterol 21(14):4136-4149. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4136
Susan Lapthorne, Julie E Bines, Fiona Fouhy, Nicole L Dellios, Guineva Wilson, Sarah L Thomas, Michelle Scurr, Catherine Stanton, Paul D Cotter, Prue M Pereira-Fantini 
World J Gastroenterol 21(14):4150-4158. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4150
Donia Tabka, Mohamed Bejaoui, James Javellaud, Joan Roselló-Catafau, Jean-Michel Achard, Hassen Ben Abdennebi 
World J Gastroenterol 21(14):4159-4168. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4159
Cheng-Chia Tsai, Tang-Wei Chuang, Li-Jen Chen, Ho-Shan Niu, Kun-Ming Chung, Juei-Tang Cheng, Kao-Chang Lin 
World J Gastroenterol 21(14):4169-4177. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4169
Wen-Ju Chang, Lu-Jun Song, Tuo Yi, Kun-Tang Shen, Hong-Shan Wang, Xiao-Dong Gao, Min Li, Jian-Min Xu, Wei-Xin Niu, Xin-Yu Qin 
World J Gastroenterol 21(14):4184-4194. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4184
Jing-Yao Zhang, Si-Dong Song, Qing Pang, Rui-Yao Zhang, Yong Wan, Da-Wei Yuan, Qi-Fei Wu, Chang Liu 
World J Gastroenterol 21(14):4195-4209. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4195
Lian-Huang Li, Zhi-Fen Chen, Xing-Fu Wang, Shuang-Mu Zhuo, Hong-Sheng Li, Wei-Zhong Jiang, Guo-Xian Guan, Jian-Xin Chen 
World J Gastroenterol 21(14):4210-4215. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4210
Yan-Qiang Huang, Gan-Rong Huang, Ming-Hui Wu, Hua-Ying Tang, Zan-Song Huang, Xi-Han Zhou, Wen-Qiang Yu, Jian-Wei Su, Xiao-Qiang Mo, Bing-Pu Chen, Li-Juan Zhao, Xiao-Feng Huang, Hong-Yu Wei, Lian-Deng Wei 
World J Gastroenterol 21(14):4225-4231. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4225
Case Control Study
Retrospective Study
Prospective Study
Min-Young Lee, Ki Sun Jung, Hae Su Kim, Ji Yun Lee, Sung Hee Lim, Moonjin Kim, Hyun Ae Jung, Sung Min Kim, Jong Mu Sun, Myung-Ju Ahn, Jeeyun Lee, Se Hoon Park, Seong Yoon Yi, In Gyu Hwang, Sang-Cheol Lee, Hee Kyung Ahn, Do Hyoung Lim, Soon Il Lee, Keon Woo Park 
World J Gastroenterol 21(14):4268-4274. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4268
Kai Qu, Su-Shun Liu, Zhi-Xin Wang, Zi-Chao Huang, Si-Nan Liu, Hu-Lin Chang, Xin-Sen Xu, Ting Lin, Ya-Feng Dong, Chang Liu 
World J Gastroenterol 21(14):4310-4322. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4310
Systematic Reviews
Meta-Analysis
Case Report
Andrea Taddio, Alberto Tommasini, Erica Valencic, Ettore Biagi, Giuliana Decorti, Sara De Iudicibus, Eva Cuzzoni, Giuseppe Gaipa, Raffaela Badolato, Alberto Prandini, Andrea Biondi, Alessandro Ventura 
World J Gastroenterol 21(14):4379-4384. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4379
Akinori Shirahige, Haruhisa Suzuki, Ichiro Oda, Masau Sekiguchi, Genki Mori, Seiichiro Abe, Satoru Nonaka, Shigetaka Yoshinaga, Shigeki Sekine, Ryoji Kushima, Yutaka Saito, Takeo Fukagawa, Hitoshi Katai 
World J Gastroenterol 21(14):4385-4390. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4385
Chih-En Tseng, Yu-Hsi Hsieh, Chang-Kuo Wei, Hsuan-Ying Huang, Chen-Lin Chi 
World J Gastroenterol 21(14):4391-4396. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4391
Ying-Cheng Zhang, Yu-Qi Zhou, Bing Yan, Jun Shi, Li-Juan Xiu, Yu-Wei Sun, Xuan Liu, Zhi-Feng Qin, Pin-Kang Wei, Yong-Jin Li 
World J Gastroenterol 21(14):4402-4407. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4402
Jie Liu, Cheng-Wu Zhang, De-Fei Hong, Jia Wu, Hong-Guo Yang, Yuan Chen, Da-Jian Zhao, Yu-Hua Zhang 
World J Gastroenterol 21(14):4413-4418. Published online Apr 14, 2015. doi: 10.3748/wjg.v21.i14.4413
Letters To The Editor