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Original Article
Hsin-Hung Cheng, Guan-Ying Tseng, Hsiao-Bai Yang, Hung-Jung Wang, Hwai-Jeng Lin, Wen-Ching Wang 
World J Gastroenterol 18(1):34-43. Published online Jan 7, 2012. doi: 10.3748/wjg.v18.i1.34
Brief Article
Masaaki Kodama, Kazunari Murakami, Tadayoshi Okimoto, Yoshihiro Fukuda, Tadashi Shimoyama, Masumi Okuda, Chieko Kato, Intetsu Kobayashi, Toshio Fujioka 
World J Gastroenterol 18(1):44-48. Published online Jan 7, 2012. doi: 10.3748/wjg.v18.i1.44
Jong Won Kim, Jae-Ho Cheong, Woo Jin Hyung, Seung-Ho Choi, Sung Hoon Noh 
World J Gastroenterol 18(1):49-54. Published online Jan 7, 2012. doi: 10.3748/wjg.v18.i1.49
Abdulrahman A Aljumah, Mohamed A Saeed, Ahmed I Al Flaiw, Ibrahim H Al Traif, Abduljaleel M Al Alwan, Salem H Al Qurashi, Ghormallah A Al Ghamdi, Fayez F Al Hejaili, Mohammed A Al Balwi, Abdulla A Al Sayyari 
World J Gastroenterol 18(1):55-63. Published online Jan 7, 2012. doi: 10.3748/wjg.v18.i1.55
Zhi-Hui Chen, Xin-Ming Song, Shi-Cai Chen, Ming-Zhe Li, Xin-Xin Li, Wen-Hua Zhan, Yu-Long He 
World J Gastroenterol 18(1):64-69. Published online Jan 7, 2012. doi: 10.3748/wjg.v18.i1.64
Pu-Yuan Wu, Zheng Zhang, Jing-Mei Wang, Wen-Wen Guo, Nong Xiao, Qiong He, Ya-Ping Wang, Yi-Mei Fan 
World J Gastroenterol 18(1):70-78. Published online Jan 7, 2012. doi: 10.3748/wjg.v18.i1.70
Long-Zhu Li, Hong-Xia Deng, Wen-Zhu Lou, Xue-Yan Sun, Meng-Wan Song, Jing Tao, Bing-Xiu Xiao, Jun-Ming Guo 
World J Gastroenterol 18(1):79-83. Published online Jan 7, 2012. doi: 10.3748/wjg.v18.i1.79
Case Report
Tsukasa Kawaguchi, Kiyoshi Mochizuki, Takashi Kizu, Masanori Miyazaki, Takayuki Yakushijin, Shusaku Tsutsui, Eiichi Morii, Tetsuo Takehara 
World J Gastroenterol 18(1):90-95. Published online Jan 7, 2012. doi: 10.3748/wjg.v18.i1.90