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Review
Regina Maria Pereira, Robson Augusto Souza dos Santos, Filipi Leles da Costa Dias, Mauro Martins Teixeira, Ana Cristina Simões e Silva 
World J Gastroenterol 15(21):2579-2586. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2579
Original Articles
Josep Martí, María Marta Modolo, Josep Fuster, Jaume Comas, Rebeca Cosa, Joana Ferrer, Victor Molina, Juan Romero, Constantino Fondevila, Ramón Charco, Juan Carlos García-Valdecasas 
World J Gastroenterol 15(21):2587-2594. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2587
Brief Articles
Dana Lau-Corona, Luís Alberto Pineda, Héctor Hugo Avilés, Gabriela Gutiérrez-Reyes, Blanca Eugenia Farfan-Labonne, Rafael Núñez-Nateras, Alan Bonder, Rosalinda Martínez-García, Clara Corona-Lau, Marco Antonio Olivera-Martínez, Maria Concepción Gutiérrez-Ruiz, Guillermo Robles-Díaz, David Kershenobich 
World J Gastroenterol 15(21):2617-2622. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2617
Ken Shirabe, Kiyoshi Kajiyama, Norifumi Harimoto, Hideaki Masumoto, Tatsuro Fukuya, Masafumi Ooya, Yoshihiko Maehara 
World J Gastroenterol 15(21):2632-2637. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2632
Case Report
Ioannis A Voutsadakis, Stergios Doumas, Konstantinos Tsapakidis, Maria Papagianni, Christos N Papandreou 
World J Gastroenterol 15(21):2665-2668. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2665
Sami Akbulut, Bahri Cakabay, Cihan Akgul Ozmen, Arsenal Sezgin, Mahsuni Mert Sevinc 
World J Gastroenterol 15(21):2672-2674. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2672