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Original Article
Chourouk Ettreiki, Pascale Gadonna-Widehem, Irène Mangin, Moïse Coëffier, Carine Delayre-Orthez, Pauline M Anton 
World J Gastroenterol 18(21):2619-2629. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2619
Hou-Min Zhou, Tao-Tao Dong, Lin-Lin Wang, Bo Feng, Hong-Chao Zhao, Xiu-Ke Fan, Min-Hua Zheng 
World J Gastroenterol 18(21):2640-2648. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2640
Brief Article
Viktória Terzin, Imre Földesi, László Kovács, Gyula Pokorny, Tibor Wittmann, László Czakó 
World J Gastroenterol 18(21):2649-2653. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2649
Yang Won Min, Geum-Youn Gwak, Min Woo Lee, Moon Seok Choi, Joon Hyoek Lee, Kwang Cheol Koh, Seung Woon Paik, Byung Chul Yoo 
World J Gastroenterol 18(21):2654-2660. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2654
Chung-Hwa Park, Seung-Hee Jeong, Hyeon-Woo Yim, Jin Dong Kim, Si Hyun Bae, Jong Young Choi, Seung Kew Yoon 
World J Gastroenterol 18(21):2661-2667. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2661
Mohd Aminudin Mustapha, Siti Nurfatimah Mohd Shahpudin, Ahmad Aizat Abdul Aziz, Ravindran Ankathil 
World J Gastroenterol 18(21):2668-2673. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2668
Yao-Jong Yang, Bor-Shyang Sheu, Hsiao-Bai Yang, Cheng-Chan Lu, Ching-Chun Chuang 
World J Gastroenterol 18(21):2674-2681. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2674
Ji-Gui Chen, Juan Cai, Huan-Lei Wu, Hua Xu, Yu-Xing Zhang, Chao Chen, Qian Wang, Jun Xu, Xiang-Lin Yuan 
World J Gastroenterol 18(21):2682-2688. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2682
Yue-Hui Li, Yan Liu, Yan-Dong Li, Yan-Hong Liu, Feng Li, Qiang Ju, Ping-Li Xie, Guan-Cheng Li 
World J Gastroenterol 18(21):2704-2711. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2704
Xue-Xi Yang, Jing-Zhe Sun, Fen-Xia Li, Ying-Song Wu, Hong-Yan Du, Wei Zhu, Xiang-Hong Li, Ming Li 
World J Gastroenterol 18(21):2719-2726. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2719
Case Report
Giovanni Di Nardo, Salvatore Oliva, Marina Aloi, Federica Ferrari, Simone Frediani, Adriana Marcheggiano, Salvatore Cucchiara 
World J Gastroenterol 18(21):2727-2729. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2727
Satimai Aniwan, Surasak Eakpongpaisit, Boonlert Imraporn, Surachai Amornsawadwatana, Rungsun Rerknimitr 
World J Gastroenterol 18(21):2730-2734. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2730
Letters To The Editor
Toshihiro Nishizawa, Hidekazu Suzuki, Takama Maekawa, Naohiko Harada, Tatsuya Toyokawa, Toshio Kuwai, Masanori Ohara, Takahiro Suzuki, Masahiro Kawanishi, Kenji Noguchi, Toshiyuki Yoshio, Shinji Katsushima, Hideo Tsuruta, Eiji Masuda, Munehiro Tanaka, Shunsuke Katayama, Norio Kawamura, Yuko Nishizawa, Toshifumi Hibi, Masahiko Takahashi 
World J Gastroenterol 18(21):2735-2738. Published online Jun 7, 2012. doi: 10.3748/wjg.v18.i21.2735