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Open-Access Journal
Editorial
Giuseppe Verlato, Daniele Marrelli, Simone Accordini, Maria Bencivenga, Alberto Di Leo, Alberto Marchet, Roberto Petrioli, Giacomo Zoppini, Michele Muggeo, Franco Roviello, Giovanni de Manzoni 
World J Gastroenterol 21(21):6434-6443. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6434
Pierluigi Marzuillo, Anna Grandone, Laura Perrone, Emanuele Miraglia del Giudice 
World J Gastroenterol 21(21):6444-6450. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6444
Topic Highlight
Hong Shen, Jiao Yang, Qing Huang, Meng-Jie Jiang, Yi-Nuo Tan, Jian-Fei Fu, Li-Zhen Zhu, Xue-Feng Fang, Ying Yuan 
World J Gastroenterol 21(21):6470-6478. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6470
Review
Minireviews
Rodolfo Sacco, Valeria Mismas, Sara Marceglia, Antonio Romano, Luca Giacomelli, Marco Bertini, Graziana Federici, Salvatore Metrangolo, Giuseppe Parisi, Emanuele Tumino, Giampaolo Bresci, Ambra Corti, Manuel Tredici, Michele Piccinno, Luigi Giorgi, Carlo Bartolozzi, Irene Bargellini 
World J Gastroenterol 21(21):6518-6525. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6518
Basic Study
Kathy Saraiva-Pava, Nazanin Navabi, Emma C Skoog, Sara K Lindén, Mónica Oleastro, Mónica Roxo-Rosa 
World J Gastroenterol 21(21):6526-6542. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6526
Hong-Jing Yu, Wei Liu, Zhen Chang, Hui Shen, Li-Juan He, Sha-Sha Wang, Lu Liu, Yuan-Ying Jiang, Guo-Tong Xu, Mao-Mao An, Jun-Dong Zhang 
World J Gastroenterol 21(21):6561-6571. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6561
Xu-Feng Lu, Yong-Jie Zhou, Lei Zhang, Hong-Jie Ji, Li Li, Yu-Jun Shi, Hong Bu 
World J Gastroenterol 21(21):6591-6603. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6591
Case Control Study
Shawn A Ritchie, Bassirou Chitou, Qingan Zheng, Dushmanthi Jayasinghe, Wei Jin, Asuka Mochizuki, Dayan B Goodenowe 
World J Gastroenterol 21(21):6604-6612. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6604
Retrospective Cohort Study
Hui-Lin Ye, Dou-Dou Li, Qing Lin, Yu Zhou, Quan-Bo Zhou, Bing Zeng, Zhi-Qiang Fu, Wen-Chao Gao, Yi-Min Liu, Rui-Wan Chen, Zhi-Hua Li, Ru-Fu Chen 
World J Gastroenterol 21(21):6621-6630. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6621
Retrospective Study
Sang-Ho Jeong, Young-Woo Kim, Wansik Yu, Sang Ho Lee, Young Kyu Park, Seong-Heum Park, In Ho Jeong, Sang Eok Lee, Yongwhi Park, Young-Joon Lee 
World J Gastroenterol 21(21):6631-6638. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6631
Wen-Hui Tu, Ying Lv, Yong-Mei Zhang, Wei Hou, Jin-Yu Wang, Yi-Jun Zhang, Hong-Yan Liu, Hao-Xiang Zhu, Yan-Li Qin, Ri-Cheng Mao, Ji-Ming Zhang 
World J Gastroenterol 21(21):6639-6648. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6639
Qing Pang, Ling-Qiang Zhang, Rui-Tao Wang, Jian-Bin Bi, Jing-Yao Zhang, Kai Qu, Su-Shun Liu, Si-Dong Song, Xin-Sen Xu, Zhi-Xin Wang, Chang Liu 
World J Gastroenterol 21(21):6675-6683. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6675
Clinical Trials Study
Omero Alessandro Paoluzi, Giovanna Del Vecchio Blanco, Emanuela Visconti, Manuela Coppola, Carla Fontana, Marco Favaro, Francesco Pallone 
World J Gastroenterol 21(21):6698-6705. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6698
Munetaka Nakamura, Jun Nishikawa, Kouichi Hamabe, Atsushi Goto, Junichi Nishimura, Hiroaki Shibata, Misato Nagao, Sho Sasaki, Shinichi Hashimoto, Takeshi Okamoto, Isao Sakaida 
World J Gastroenterol 21(21):6706-6712. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6706
Observational Study
Thiago H Freitas, Elias Andreoulakis, Gilberto S Alves, Hesley LL Miranda, Lúcia LBC Braga, Thomas Hyphantis, André F Carvalho 
World J Gastroenterol 21(21):6713-6727. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6713
Prospective Study
Zsuzsanna Kurti, Barbara D Lovasz, Michael D Mandel, Zoltan Csima, Petra A Golovics, Bence D Csako, Anna Mohas, Lorant Gönczi, Krisztina B Gecse, Lajos S Kiss, Miklos Szathmari, Peter L Lakatos 
World J Gastroenterol 21(21):6728-6735. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6728
Qian Zhang, Hui-Mao Zhang, Wen-Qian Qi, Yong-Gui Zhang, Ping Zhao, Jian Jiao, Jiang-Bin Wang, Chun-Yu Zhang 
World J Gastroenterol 21(21):6736-6744. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6736
Systematic Reviews
Clotilde Fuentes-Orozco, Carlos Dávalos-Cobián, Jesús García-Correa, Gabriela Ambriz-González, Michel Dassaejv Macías-Amezcua, Jesús García-Rentería, Jorge Rendón-Félix, Mariana Chávez-Tostado, Lizbeth Araceli Cuesta-Márquez, Andrea Socorro Alvarez-Villaseñor, Ana Olivia Cortés-Flores, Alejandro González-Ojeda 
World J Gastroenterol 21(21):6745-6753. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6745
Case Report
Hiromichi Ishii, Akinori Noguchi, Mie Onishi, Koji Takao, Takahiro Maruyama, Hiroaki Taiyoh, Yasunobu Araki, Takeshi Shimizu, Hiroyuki Izumi, Naoki Tani, Masahide Yamaguchi, Tetsuro Yamane 
World J Gastroenterol 21(21):6754-6758. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6754
Tetsuo Sonomura, Shinpei Anami, Taizo Takeuchi, Motoki Nakai, Shinya Sahara, Hirohiko Tanihata, Kazuki Sakamoto, Morio Sato 
World J Gastroenterol 21(21):6759-6763. Published online Jun 7, 2015. doi: 10.3748/wjg.v21.i21.6759