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Open-Access Journal
Editorial
Roberto Ballarin, Mario Spaggiari, Nicola Cautero, Nicola De Ruvo, Roberto Montalti, Cristina Longo, Anna Pecchi, Patrizia Giacobazzi, Giuseppina De Marco, Giuseppe D’Amico, Giorgio Enrico Gerunda, Fabrizio Di Benedetto 
World J Gastroenterol 17(43):4747-4756. Published online Nov 21, 2011. doi: 10.3748/wjg.v17.i43.4747
Review
Nam Kyung Lee, Suk Kim, Hyun Sung Kim, Tae Yong Jeon, Gwang Ha Kim, Dong Uk Kim, Do Youn Park, Tae Un Kim, Dae Hwan Kang 
World J Gastroenterol 17(43):4757-4771. Published online Nov 21, 2011. doi: 10.3748/wjg.v17.i43.4757
Original Article
Brief Article
Tomohiro Kudo, Satoru Kakizaki, Naondo Sohara, Yasuhiro Onozato, Shinichi Okamura, Yoshikatsu Inui, Masatomo Mori 
World J Gastroenterol 17(43):4793-4798. Published online Nov 21, 2011. doi: 10.3748/wjg.v17.i43.4793
Patrícia O Gonçalez, Naianne K Clebis, Renata B Mari, Karina M Gagliardo, Sandra R Stabille, Haroldo G Faria, Edson A Liberti, José Roberto Kfoury Jr 
World J Gastroenterol 17(43):4799-4803. Published online Nov 21, 2011. doi: 10.3748/wjg.v17.i43.4799
Case Report