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Topic Highlight
Original Article
Nuttanan Hongsrichan, Rucksak Rucksaken, Yaovalux Chamgramol, Porntip Pinlaor, Anchalee Techasen, Puangrat Yongvanit, Narong Khuntikeo, Chawalit Pairojkul, Somchai Pinlaor 
World J Gastroenterol 19(16):2456-2465. Published online Apr 28, 2013. doi: 10.3748/wjg.v19.i16.2456
Xiao-Hua Ye, Tan-Zhou Chen, Jia-Ping Huai, Guang-Rong Lu, Xiao-Ju Zhuge, Ren-Pin Chen, Wu-Jie Chen, Chen Wang, Zhi-Ming Huang 
World J Gastroenterol 19(16):2492-2500. Published online Apr 28, 2013. doi: 10.3748/wjg.v19.i16.2492
Brief Article
Victor Torres, Nicholas Martinez, Gabriel Lee, Jose Almeda, Glenn Gross, Sandeep Patel, Laura Rosenkranz 
World J Gastroenterol 19(16):2501-2506. Published online Apr 28, 2013. doi: 10.3748/wjg.v19.i16.2501
Daniel DiGiacomo, Antonella Santonicola, Fabiana Zingone, Edoardo Troncone, Maria Cristina Caria, Patrizia Borgheresi, Gianpaolo Parrilli, Carolina Ciacci 
World J Gastroenterol 19(16):2507-2513. Published online Apr 28, 2013. doi: 10.3748/wjg.v19.i16.2507
Nora B Zschau, Jane M Andrews, Richard H Holloway, Mark N Schoeman, Kylie Lange, William CE Tam, Gerald J Holtmann 
World J Gastroenterol 19(16):2514-2520. Published online Apr 28, 2013. doi: 10.3748/wjg.v19.i16.2514
Naoto Egawa, Yingsong Lin, Taku Tabata, Sawako Kuruma, Seiichi Hara, Ken Kubota, Terumi Kamisawa 
World J Gastroenterol 19(16):2537-2542. Published online Apr 28, 2013. doi: 10.3748/wjg.v19.i16.2537
Sang Jung Park, Jin Dong Kim, Yeon Seok Seo, Beom Jin Park, Min Ju Kim, Soon Ho Um, Chang Ha Kim, Hyung Joon Yim, Soon Koo Baik, Jin Yong Jung, Bora Keum, Yoon Tae Jeen, Hong Sik Lee, Hoon Jai Chun, Chang Duck Kim, Ho Sang Ryu 
World J Gastroenterol 19(16):2543-2549. Published online Apr 28, 2013. doi: 10.3748/wjg.v19.i16.2543
Meta-Analysis
Case Report
Yosuke Tsuruga, Hirofumi Kamachi, Kenji Wakayama, Tatsuhiko Kakisaka, Hideki Yokoo, Toshiya Kamiyama, Akinobu Taketomi 
World J Gastroenterol 19(16):2569-2573. Published online Apr 28, 2013. doi: 10.3748/wjg.v19.i16.2569
Letters To The Editor