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Original Article
Bo-Lin Chen, Gui-Ying Zhang, Wei-Jian Yuan, Shi-Ping Wang, Yue-Ming Shen, Lu Yan, Huan Gu, Jia Li 
World J Gastroenterol 17(46):5075-5082. Published online Dec 14, 2011. doi: 10.3748/wjg.v17.i46.5075
Brief Article
Andrea Ruzzenente, Alessandro Valdegamberi, Tommaso Campagnaro, Simone Conci, Silvia Pachera, Calogero Iacono, Alfredo Guglielmi 
World J Gastroenterol 17(46):5083-5088. Published online Dec 14, 2011. doi: 10.3748/wjg.v17.i46.5083
Massimo Bellini, Angelo Gemignani, Dario Gambaccini, Simona Toti, Danilo Menicucci, Cristina Stasi, Francesco Costa, Maria Gloria Mumolo, Angelo Ricchiuti, Remo Bedini, Nicola de Bortoli, Santino Marchi 
World J Gastroenterol 17(46):5089-5096. Published online Dec 14, 2011. doi: 10.3748/wjg.v17.i46.5089
Christos Pavlidis, Georgios I Panoutsopoulos, Dina Tiniakos, Sotirios Koutsounas, John Vlachogiannakos, Irini Zouboulis-Vafiadis 
World J Gastroenterol 17(46):5097-5104. Published online Dec 14, 2011. doi: 10.3748/wjg.v17.i46.5097
Mustafa Duman, Mahmut Özer, Enver Reyhan, Yeliz Demirci, Ali E Atıcı, Tahsin Dalgıç, Erdal B Bostancı, Ece Genç 
World J Gastroenterol 17(46):5105-5109. Published online Dec 14, 2011. doi: 10.3748/wjg.v17.i46.5105
Taro Osada, Atsushi Arakawa, Naoto Sakamoto, Hiroya Ueyama, Tomoyoshi Shibuya, Tatsuo Ogihara, Takashi Yao, Sumio Watanabe 
World J Gastroenterol 17(46):5110-5116. Published online Dec 14, 2011. doi: 10.3748/wjg.v17.i46.5110
Kazuhiro Mizukami, Kazunari Murakami, Takashi Abe, Kunimitsu Inoue, Masahiro Uchida, Tadayoshi Okimoto, Masaaki Kodama, Toshio Fujioka 
World J Gastroenterol 17(46):5117-5122. Published online Dec 14, 2011. doi: 10.3748/wjg.v17.i46.5117
Letters To The Editor