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Open-Access Journal
Editorial
Topic Highlight
Konstantinos Papamichael, Panagiotis Konstantopoulos, Gerassimos J Mantzaris 
World J Gastroenterol 20(21):6374-6385. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6374
Review
Erna Sziksz, Domonkos Pap, Gábor Veres, Andrea Fekete, Tivadar Tulassay, Ádám Vannay 
World J Gastroenterol 20(21):6495-6503. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6495
Bing Pang, Qiang Zhou, Jun-Ling Li, Lin-Hua Zhao, Xiao-Lin Tong 
World J Gastroenterol 20(21):6504-6514. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6504
Original Article
Yong-Bin Zheng, Hai-Ping Luo, Qiang Shi, Zhi-Nan Hao, Yu Ding, Qiu-Shuang Wang, Sheng-Bo Li, Gao-Chun Xiao, Shi-Lun Tong 
World J Gastroenterol 20(21):6515-6522. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6515
Research Report
Andrés Marambio, Guillermo Watkins, Fabiola Castro, Andrea Riffo, Roberta Zúñiga, Jaime Jans, María E Villanueva, Guillermo Díaz 
World J Gastroenterol 20(21):6534-6540. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6534
Woo Chul Chung, Sung Hoon Jung, Jung Hwan Oh, Tae Ho Kim, Dae Young Cheung, Byung Wook Kim, Sung Soo Kim, Jin Il Kim, Eun Young Sin 
World J Gastroenterol 20(21):6547-6553. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6547
Evidence-Based Medicine
Jennifer Raisch, Emmanuel Buc, Mathilde Bonnet, Pierre Sauvanet, Emilie Vazeille, Amélie de Vallée, Pierre Déchelotte, Claude Darcha, Denis Pezet, Richard Bonnet, Marie-Agnès Bringer, Arlette Darfeuille-Michaud 
World J Gastroenterol 20(21):6560-6572. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6560
Case Control Study
Đorđe Ćulafić, Miloš Štulić, Radmila Obrenović, Danijela Miletić, Dragana Mijač, Milica Stojković, Marija Jovanović, Milica Ćulafić 
World J Gastroenterol 20(21):6573-6579. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6573
Retrospective Study
Toru Aoyama, Takaki Yoshikawa, Hirohito Fujikawa, Tsutomu Hayashi, Takashi Ogata, Haruhiko Cho, Takanobu Yamada, Shinichi Hasegawa, Kazuhito Tsuchida, Norio Yukawa, Takashi Oshima, Mari S Oba, Satoshi Morita, Yasushi Rino, Munetaka Masuda 
World J Gastroenterol 20(21):6580-6585. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6580
Tae-Geun Gweon, Myung-Gyu Choi, Myong Ki Baeg, Chul-Hyun Lim, Jae Myung Park, In Seok Lee, Sang Woo Kim, Dong-Gun Lee, Yeon Joon Park, Jong Wook Lee 
World J Gastroenterol 20(21):6602-6607. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6602
Yong-Bo Cheng, Li-Ping Guo, Ping Yao, Xiao-Yan Ning, Gulimire Aerken, Dian-Chun Fang 
World J Gastroenterol 20(21):6615-6619. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6615
Clinical Trials Study
Observational Study
Giovanna Ferraioli, Carmine Tinelli, Raffaella Lissandrin, Mabel Zicchetti, Barbara Dal Bello, Gaetano Filice, Carlo Filice 
World J Gastroenterol 20(21):6626-6631. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6626
Miroslaw Snietura, Dariusz Waniczek, Wojciech Piglowski, Agnieszka Kopec, Ewa Nowakowska-Zajdel, Zbigniew Lorenc, Malgorzata Muc-Wierzgon 
World J Gastroenterol 20(21):6632-6637. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6632
Yukihiro Sanada, Koshi Matsumoto, Taizen Urahashi, Yoshiyuki Ihara, Taiichi Wakiya, Noriki Okada, Naoya Yamada, Yuta Hirata, Koichi Mizuta 
World J Gastroenterol 20(21):6638-6650. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6638
Prospective Study
Meta-Analysis
Case Report
Andrea Cacciato Insilla, Monnalisa Granai, Grazia Gallippi, Patrizia Giusti, Sabina Giusti, Simone Guadagni, Luca Morelli, Daniela Campani 
World J Gastroenterol 20(21):6675-6679. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6675
Zong-Quan Wen, Guang-Yao Wu, Shao-Ping Yu, Xiao-Dong Lin, Song-Hu Li, Xian-Guang Huang, Fu Zhang, Xiao-Yu Zeng, Hai-Yan Huang, Ai-Mei Li 
World J Gastroenterol 20(21):6698-6700. Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6698