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Kai Bachmann, Geeske Krause, Tamina Rawnaq, Lena Tomkotter, Yogesh Vashist, Shanly Shahmiri, Jakob R Izbicki, Maximilian Bockhorn 
World J Gastroenterol 17(48):5274-5279. Published online Dec 28, 2011. doi: 10.3748/wjg.v17.i48.5274
Giovanni Tarantino, Francesco Scopacasa, Annamaria Colao, Domenico Capone, Marianna Tarantino, Ernesto Grimaldi, Silvia Savastano 
World J Gastroenterol 17(48):5280-5288. Published online Dec 28, 2011. doi: 10.3748/wjg.v17.i48.5280
Andres Castillo, Chihaya Koriyama, Michiyo Higashi, Muhammad Anwar, Mulazim Hussain Bukhari, Edwin Carrascal, Lida Mancilla, Hiroshi Okumura, Masataka Matsumoto, Kazumasa Sugihara, Shoji Natsugoe, Yoshito Eizuru, Suminori Akiba 
World J Gastroenterol 17(48):5295-5304. Published online Dec 28, 2011. doi: 10.3748/wjg.v17.i48.5295
Ron Benyair, Maria Kondratyev, Elena Veselkin, Sandra Tolchinsky, Marina Shenkman, Yoav Lurie, Gerardo Z Lederkremer 
World J Gastroenterol 17(48):5305-5309. Published online Dec 28, 2011. doi: 10.3748/wjg.v17.i48.5305
Chan Ho Park, Hee Cheol Kim, Yong Beom Cho, Seong Hyeon Yun, Woo Yong Lee, Young Suk Park, Doo Ho Choi, Ho-Kyung Chun 
World J Gastroenterol 17(48):5310-5316. Published online Dec 28, 2011. doi: 10.3748/wjg.v17.i48.5310
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