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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
Klaus Stienecker, Daniel Gleichmann, Ulrike Neumayer, H Joachim Glaser, Carolin Tonus 
World J Gastroenterol 15(21):2623-2627. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2623
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
Xue-Fu Zhou, Yu-Long He, Wu Song, Jian-Jun Peng, Chang-Hua Zhang, Wen Li, Hui Wu 
World J Gastroenterol 15(21):2644-2650. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2644
Wen-Tao Kong, Wei-Wei Zhang, Yu-Dong Qiu, Tie Zhou, Jun-Lan Qiu, Wei Zhang, Yi-Tao Ding 
World J Gastroenterol 15(21):2651-2656. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2651
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
Erdal Peker, Eren Cagan, Murat Dogan 
World J Gastroenterol 15(21):2669-2671. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2669
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
Pyong Wha Choi, Chul Nam Kim, Sun Hee Chang, Woo Ik Chang, Chang Young Kim, Hyun Min Choi 
World J Gastroenterol 15(21):2675-2678. Published online Jun 7, 2009. doi: 10.3748/wjg.15.2675