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Open-Access Journal
Editorial
Review
Luigi Elio Adinolfi, Riccardo Nevola, Giacomo Lus, Luciano Restivo, Barbara Guerrera, Ciro Romano, Rosa Zampino, Luca Rinaldi, Ausilia Sellitto, Mauro Giordano, Aldo Marrone 
World J Gastroenterol 21(8):2269-2280. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2269
Francesco Puleo, Raphaël Maréchal, Pieter Demetter, Maria-Antonietta Bali, Annabelle Calomme, Jean Closset, Jean-Baptiste Bachet, Jacques Deviere, Jean-Luc Van Laethem 
World J Gastroenterol 21(8):2281-2293. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2281
Minireviews
Basic Study
Zhong-Min Wang, Jian Lu, Li-Yun Zhang, Xiao-Zhu Lin, Ke-Min Chen, Zhi-Jin Chen, Fen-Ju Liu, Fu-Hua Yan, Gao-Jun Teng, Ai-Wu Mao 
World J Gastroenterol 21(8):2336-2342. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2336
Case Control Study
Georgios Georgantis, Theodoros Syrakos, Theodoros Agorastos, Spiridon Miliaras, Asterios Gagalis, Georgios Tsoulfas, Konstantinos Spanos, Georgios Marakis 
World J Gastroenterol 21(8):2352-2357. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2352
Retrospective Study
Do Seon Song, Soon Woo Nam, Si Hyun Bae, Jin Dong Kim, Jeong Won Jang, Myeong Jun Song, Sung Won Lee, Hee Yeon Kim, Young Joon Lee, Ho Jong Chun, Young Kyoung You, Jong Young Choi, Seung Kew Yoon 
World J Gastroenterol 21(8):2395-2404. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2395
Clinical Trials Study
Observational Study
Jonathan R Strosberg, George A Fisher, Al B Benson, Lowell B Anthony, Bulent Arslan, John F Gibbs, Edward Greeno, Renuka V Iyer, Michelle K Kim, William J Maples, Philip A Philip, Edward M Wolin, Dasha Cherepanov, Michael S Broder 
World J Gastroenterol 21(8):2450-2459. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2450
Chisato Hamashima, Kazuei Ogoshi, Rintarou Narisawa, Tomoki Kishi, Toshiyuki Kato, Kazutaka Fujita, Masatoshi Sano, Satoshi Tsukioka 
World J Gastroenterol 21(8):2460-2466. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2460
Ting-Hui Jiang, Xian-Jun Sun, Yue Chen, Hui-Qin Cheng, Shi-Ming Fang, Hao-Sheng Jiang, Yan Cao, Bing-Yan Liu, Shao-Qiu Wu, Ai-Wu Mao 
World J Gastroenterol 21(8):2467-2474. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2467
Prospective Study
Randomized Clinical Trial
Evidence-Based Medicine
Hyuk Yoon, Dong Ho Lee, Eun Sun Jang, Jaihwan Kim, Cheol Min Shin, Young Soo Park, Jin-Hyeok Hwang, Jin-Wook Kim, Sook-Hayng Jeong, Nayoung Kim 
World J Gastroenterol 21(8):2497-2503. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2497
Meta-Analysis
Case Report
Joung Boom Hong, Hyung Wook Kim, Dae Hwan Kang, Cheol Woong Choi, Su Bum Park, Dong Jun Kim, Byoung Hoon Ji, Kyung Won Koh 
World J Gastroenterol 21(8):2563-2567. Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2563