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Open-Access Journal
Editorial
Daniel Ansari, Bi-Cheng Chen, Lei Dong, Meng-Tao Zhou, Roland Andersson 
World J Gastroenterol 18(13):1417-1424. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1417
Topic Highlight
Giuseppe Grosso, Salvatore Gruttadauria, Antonio Biondi, Stefano Marventano, Antonio Mistretta 
World J Gastroenterol 18(13):1425-1437. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1425
Gianluca Marrone, Francesca Crino', Settimo Caruso, Giuseppe Mamone, Vincenzo Carollo, Mariapina Milazzo, Salvatore Gruttadauria, Angelo Luca, Bruno Gridelli 
World J Gastroenterol 18(13):1438-1447. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1438
Giuseppe Nunnari, Marilia R Pinzone, Salvatore Gruttadauria, Benedetto M Celesia, Giordano Madeddu, Giulia Malaguarnera, Piero Pavone, Alessandro Cappellani, Bruno Cacopardo 
World J Gastroenterol 18(13):1448-1458. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1448
Original Article
Sarah J McCaskey, Elizabeth A Rondini, Jonathan F Clinthorne, Ingeborg M Langohr, Elizabeth M Gardner, Jenifer I Fenton 
World J Gastroenterol 18(13):1459-1469. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1459
Akira Yoneda, Shinichiro Ito, Seiya Susumu, Mitsutoshi Matsuo, Ken Taniguchi, Yoshitsugu Tajima, Susumu Eguchi, Takashi Kanematsu, Yasuhiro Nagata 
World J Gastroenterol 18(13):1470-1478. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1470
Duangporn Thong-Ngam, Sakonwan Choochuai, Suthiluk Patumraj, Maneerat Chayanupatkul, Naruemon Klaikeaw 
World J Gastroenterol 18(13):1479-1484. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1479
Ren-Xian Tang, Fan-Yun Kong, Bao-Feng Fan, Xiao-Mei Liu, Hong-Juan You, Peng Zhang, Kui-Yang Zheng 
World J Gastroenterol 18(13):1485-1495. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1485
Brief Article
Francesca Iacobellis, Daniela Berritto, Francesco Somma, Carlo Cavaliere, Marco Corona, Santolo Cozzolino, Franco Fulciniti, Salvatore Cappabianca, Antonio Rotondo, Roberto Grassi 
World J Gastroenterol 18(13):1496-1501. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1496
Jessie Westerhof, Jan J Koornstra, Reinier A Hoedemaker, Wim J Sluiter, Jan H Kleibeuker, Rinse K Weersma 
World J Gastroenterol 18(13):1502-1507. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1502
Masahide Hamaguchi, Noriyuki Takeda, Takao Kojima, Akihiro Ohbora, Takahiro Kato, Hiroshi Sarui, Michiaki Fukui, Chisato Nagata, Jun Takeda 
World J Gastroenterol 18(13):1508-1516. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1508
Masahiro Sakaguchi, Miyuki Takao, Yasuo Ohyama, Hiroshi Oka, Hiroshi Yamashita, Takumi Fukuchi, Kiyoshi Ashida, Masahiro Murotani, Masuyo Murotani, Kazuo Majima, Hiroshi Morikawa, Takashi Hashimoto, Keisuke Kiyota, Hirohiko Esaki, Kanji Amemoto, Gouhei Isowa, Fumiyuki Takao 
World J Gastroenterol 18(13):1517-1524. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1517
Mariana Ferreira Leal, Danielle Queiroz Calcagno, Sâmia Demachki, Paulo Pimentel Assumpção, Roger Chammas, Rommel Rodríguez Burbano, Marília de Arruda Cardoso Smith 
World J Gastroenterol 18(13):1531-1537. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1531
Case Report
Toshiyuki Moriya, Wataru Kimura, Ichiro Hirai, Akiko Takeshita, Koji Tezuka, Toshihiro Watanabe, Masaomi Mizutani, Akira Fuse 
World J Gastroenterol 18(13):1538-1544. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1538
Tadashi Terada, Hirotoshi Maruo 
World J Gastroenterol 18(13):1545-1551. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1545
Ping-Ping Zheng, Bing-Yuan Wang, Fei Wang, Ran Ao, Ying Wang 
World J Gastroenterol 18(13):1552-1554. Published online Apr 7, 2012. doi: 10.3748/wjg.v18.i13.1552