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Review
Davide Festi, Eleonora Scaioli, Fabio Baldi, Amanda Vestito, Francesca Pasqui, Anna Rita Di Biase, Antonio Colecchia 
World J Gastroenterol 15(14):1690-1701. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1690
Original Articles
Stephan Gehring, Edmond Sabo, Maryann E San Martin, Elizabeth M Dickson, Chao-Wen Cheng, Stephen H Gregory 
World J Gastroenterol 15(14):1708-1718. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1708
Xiao-Yan Liu, Dan Dong, Peng Sun, Jun Du, Luo Gu, Ying-Bin Ge 
World J Gastroenterol 15(14):1738-1743. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1738
You-Hua Wu, Jian-Guo Cao, Hong-Lin Xiang, Hong Xia, Yong Qin, A-Ji Huang, Di Xiao, Fang Xu 
World J Gastroenterol 15(14):1744-1750. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1744
Yu Yao, Chen Huang, Zong-Fang Li, Ai-Ying Wang, Li-Ying Liu, Xiao-Ge Zhao, Yu Luo, Lei Ni, Wang-Gang Zhang, Tu-Sheng Song 
World J Gastroenterol 15(14):1751-1758. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1751
Brief Articles
Stergios Vradelis, Evangelos Kalaitzakis, Yalda Sharifi, Otto Buchel, Satish Keshav, Roger W Chapman, Barbara Braden 
World J Gastroenterol 15(14):1759-1763. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1759
Hirohito Kato, Takamasa Ishii, Tatsuo Akimoto, Yoshihisa Urita, Motonobu Sugimoto 
World J Gastroenterol 15(14):1764-1768. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1764
Case Report
Giovanni D De Palma, Maria Rega, Stefania Masone, Saverio Siciliano, Marcello Persico, Francesca Salvatori, Francesco Maione, Dario Esposito, Antonio Bellino, Giovanni Persico 
World J Gastroenterol 15(14):1769-1770. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1769
Dídia Bisamra Cury, Marcelo de Souza Cury, Geraldo Vinicius Hemerly Elias, Sender Jankiel Mizsputen 
World J Gastroenterol 15(14):1771-1773. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1771
Chise Kodaira, Satoshi Osawa, Chihiro Mochizuki, Yoshihiko Sato, Masafumi Nishino, Takanori Yamada, Yasuhiro Takayanagi, Kosuke Takagaki, Ken Sugimoto, Shigeru Kanaoka, Takahisa Furuta, Mutsuhiro Ikuma 
World J Gastroenterol 15(14):1774-1778. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1774
Atsunori Tsuchiya, Michitaka Imai, Hiroteru Kamimura, Tadayuki Togashi, Kouji Watanabe, Kei-ichi Seki, Toru Ishikawa, Hironobu Ohta, Toshiaki Yoshida, Tomoteru Kamimura 
World J Gastroenterol 15(14):1779-1781. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1779
Liu Liu, Wen Zhuang, Zhong Chen, Yong Zhou, Xiao-Ran Huang 
World J Gastroenterol 15(14):1782-1785. Published online Apr 14, 2009. doi: 10.3748/wjg.15.1782
Letters To The Editor