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Andreas Teufel, Arndt Weinmann, Catherine Centner, Anja Piendl, Ansgar W Lohse, Peter R Galle, Stephan Kanzler 
World J Gastroenterol 15(5):578-582. Published online Feb 7, 2009. doi: 10.3748/wjg.15.578
Michael Schultz, Andrew Davidson, Sarah Donald, Bogna Targonska, Angus Turnbull, Susan Weggery, Vicki Livingstone, John D Dockerty 
World J Gastroenterol 15(5):583-590. Published online Feb 7, 2009. doi: 10.3748/wjg.15.583
Tamara Alempijevic, Miodrag Krstic, Rada Jesic, Ivan Jovanovic, Aleksandra Sokic Milutinovic, Nada Kovacevic, Slobodan Krstic, Dragan Popovic 
World J Gastroenterol 15(5):591-594. Published online Feb 7, 2009. doi: 10.3748/wjg.15.591
Kazunori Hata, Akira Andoh, Kiyoyuki Hayafuji, Atsuhiro Ogawa, Tamio Nakahara, Tomoyuki Tsujikawa, Yoshihide Fujiyama, Yasuharu Saito 
World J Gastroenterol 15(5):595-598. Published online Feb 7, 2009. doi: 10.3748/wjg.15.595
Case Report
Kun-Chun Chiang, Jun Te Hsu, Huang-Yang Chen, Shyh Chuan Jwo, Tsann-Long Hwang, Yi-Yin Jan, Chun-Nan Yeh 
World J Gastroenterol 15(5):628-632. Published online Feb 7, 2009. doi: 10.3748/wjg.15.628