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Open-Access Journal
Editorial
Akihito Tsubota, Kiyotaka Fujise, Yoshihisa Namiki, Norio Tada 
World J Gastroenterol 17(4):419-432. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.419
Topic Highlight
Anna Benjamin Pulimood, Deepak Narayan Amarapurkar, Ujjala Ghoshal, Mathew Phillip, Cannanore Ganesh Pai, Duvvur Nageshwar Reddy, Birender Nagi, Balakrishna Siddhartha Ramakrishna 
World J Gastroenterol 17(4):433-443. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.433
Review
Original Article
Anna Zub-Pokrowiecka, Kazimierz Rembiasz, Peter C Konturek, Andrzej Budzyński, Stanisław J Konturek, Marek Winiarski, Władysław Bielański 
World J Gastroenterol 17(4):449-458. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.449
David Philippe, Laurent Favre, Francis Foata, Oskar Adolfsson, Genevieve Perruisseau-Carrier, Karine Vidal, Gloria Reuteler, Johanna Dayer-Schneider, Christoph Mueller, Stéphanie Blum 
World J Gastroenterol 17(4):459-469. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.459
Yuzhu Jiang, Seon-Hee Yim, Hai-Dong Xu, Seung-Hyun Jung, So Young Yang, Hae-Jin Hu, Chan-Kwon Jung, Yeun-Jun Chung 
World J Gastroenterol 17(4):470-477. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.470
Bao-Song Zhu, Chun-Gen Xing, Fang Lin, Xiao-Qing Fan, Kui Zhao, Zheng-Hong Qin 
World J Gastroenterol 17(4):478-487. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.478
Brief Article
Ana Paula Araújo, Bruno M Costa, Ana L Pinto-Correia, Maria Fragoso, Paula Ferreira, Mário Dinis-Ribeiro, Sandra Costa, Rui M Reis, Rui Medeiros 
World J Gastroenterol 17(4):488-492. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.488
María Trapero-Marugán, Jorge Mendoza, María Chaparro, Leticia González-Moreno, José Andrés Moreno-Monteagudo, María Jesús Borque, Ricardo Moreno-Otero 
World J Gastroenterol 17(4):493-498. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.493
Riadh Sadik, Evangelos Kalaitzakis, Anders Thune, Jan Hansen, Claes Jönson 
World J Gastroenterol 17(4):499-505. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.499
Greetje J Tack, Wieke HM Verbeek, Abdul Al-Toma, Dirk J Kuik, Marco WJ Schreurs, Otto Visser, Chris JJ Mulder 
World J Gastroenterol 17(4):506-513. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.506
Anne L Krarup, Søren S Olesen, Peter Funch-Jensen, Hans Gregersen, Asbjørn M Drewes 
World J Gastroenterol 17(4):514-521. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.514
Farhad Zamani, Sara Razmjou, Shahram Akhlaghpoor, Seyyedeh-Masoomeh Eslami, Azita Azarkeivan, Afsaneh Amiri 
World J Gastroenterol 17(4):522-525. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.522
Yan Gong, Ming-Zhou Guo, Zhi-Jia Ye, Xiu-Li Zhang, Yong-Liang Zhao, Yun-Sheng Yang 
World J Gastroenterol 17(4):526-533. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.526
Xu Che, Dong-Bing Zhao, Yong-Kai Wu, Cheng-Feng Wang, Jian-Qiang Cai, Yong-Fu Shao, Ping Zhao 
World J Gastroenterol 17(4):534-539. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.534
Case Report
Xin-Ping Li, Wen-Fang Liu, Shu-Rong Ji, She-Hua Wu, Jian-Jun Sun, Yue-Zu Fan 
World J Gastroenterol 17(4):540-542. Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.540
Letters To The Editor