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Editorial
Hande H Tuncer, Naveed Rana, Cannon Milani, Angela Darko, Samer A Al-Homsi 
World J Gastroenterol 18(16):1851-1860. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1851
Alberto Biondi, Marco Zoccali, Stefano Costa, Albert Troci, Ettore Contessini-Avesani, Alessandro Fichera 
World J Gastroenterol 18(16):1861-1870. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1861
Observation
Original Article
Kathleen F Benson, Kimberlee A Redman, Steve G Carter, David Keller, Sean Farmer, John R Endres, Gitte S Jensen 
World J Gastroenterol 18(16):1875-1883. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1875
Masayuki Miyazaki, Masaki Kato, Masatake Tanaka, Kosuke Tanaka, Shinichiro Takao, Motoyuki Kohjima, Tetsuhide Ito, Munechika Enjoji, Makoto Nakamuta, Kazuhiro Kotoh, Ryoichi Takayanagi 
World J Gastroenterol 18(16):1884-1891. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1884
Xiao-Jun Zhou, Shi-Hui Sun, Peng Wang, Hong Yu, Jing-Ya Hu, Shi-Cheng Shang, Yu-Sen Zhou 
World J Gastroenterol 18(16):1892-1902. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1892
Brief Article
Khaleel R Fareed, Irshad N Soomro, Khalid Hameed, Arvind Arora, Dileep N Lobo, Simon L Parsons, Srinivasan Madhusudan 
World J Gastroenterol 18(16):1915-1920. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1915
Marine Camus, Romain Coriat, Sarah Leblanc, Catherine Brezault, Benoit Terris, Elise Pommaret, Marianne Gaudric, Ariane Chryssostalis, Frederic Prat, Stanislas Chaussade 
World J Gastroenterol 18(16):1921-1925. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1921
Hideki Fujii, Yoshito Itoh, Naoki Ohnishi, Masafumi Sakamoto, Tohru Ohkawara, Yoshihiko Sawa, Koichi Nishida, Yasuo Ohkawara, Kanji Yamaguchi, Masahito Minami, Takeshi Okanoue 
World J Gastroenterol 18(16):1926-1932. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1926
Hiroyuki Kirikoshi, Masato Yoneda, Hironori Mawatari, Koji Fujita, Kento Imajo, Shingo Kato, Kaori Suzuki, Noritoshi Kobayashi, Kensuke Kubota, Shin Maeda, Atsushi Nakajima, Satoru Saito 
World J Gastroenterol 18(16):1933-1939. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1933
Isao Takasaka, Nobuyuki Kawai, Morio Sato, Hirohiko Tanihata, Tetsuo Sonomura, Hiroki Minamiguchi, Motoki Nakai, Akira Ikoma, Kouhei Nakata, Hiroki Sanda 
World J Gastroenterol 18(16):1940-1945. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1940
Hana Park, Jin Young Yoon, Kyeong Hye Park, Do Young Kim, Sang Hoon Ahn, Kwang-Hyub Han, Chae Yoon Chon, Jun Yong Park 
World J Gastroenterol 18(16):1946-1952. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1946
Xiao-Li Chen, Feng Ji, Qi Lin, Yi-Peng Chen, Jian-Jiang Lin, Feng Ye, Ji-Ren Yu, Yi-Jun Wu 
World J Gastroenterol 18(16):1968-1974. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1968
Guo-Qing Jiang, Ping Chen, Dou-Sheng Bai, Jing-Wang Tan, Hao Su, Min-Hao Peng 
World J Gastroenterol 18(16):1981-1986. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1981
Case Report
Georgios K Georgiou, Haralampos Harissis, Michalis Mitsis, Haralampos Batsis, Michalis Fatouros 
World J Gastroenterol 18(16):1987-1990. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1987
Xiao-Liang Chen, Hong Tian, Jian-Zhong Li, Jin Tao, Hua Tang, Yang Li, Bin Wu 
World J Gastroenterol 18(16):1991-1995. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1991
Bin Chen, Cheng-Wei Tang, Chun-Le Zhang, Jia-Wei Cao, Bo Wei, Xiao Li 
World J Gastroenterol 18(16):1996-1998. Published online Apr 28, 2012. doi: 10.3748/wjg.v18.i16.1996