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Open-Access Journal
Topic Highlight
Antonio Colecchia, Ramona Schiumerini, Alessandro Cucchetti, Matteo Cescon, Martina Taddia, Giovanni Marasco, Davide Festi 
World J Gastroenterol 20(20):5935-5950. Published online May 28, 2014. doi: 10.3748/wjg.v20.i20.5935
Yu-Fan Cheng, Hsin-You Ou, Chun-Yen Yu, Leo Leung-Chit Tsang, Tung-Liang Huang, Tai-Yi Chen, Hsien-Wen Hsu, Allan M Concerjero, Chih-Chi Wang, Shih-Ho Wang, Tsan-Shiun Lin, Yueh-Wei Liu, Chee-Chien Yong, Yu-Hung Lin, Chih-Che Lin, King-Wah Chiu, Bruno Jawan, Hock-Liew Eng, Chao-Long Chen 
World J Gastroenterol 20(20):6221-6225. Published online May 28, 2014. doi: 10.3748/wjg.v20.i20.6221
Minireviews
Original Article
Case Control Study
Mohammad Rostami-Nejad, Jihane Romanos, Kamran Rostami, Azita Ganji, Mohammad Javad Ehsani-Ardakani, Ali-Reza Bakhshipour, Homayoun Zojaji, Seyed Reza Mohebbi, Mohammad-Reza Zali, Cisca Wijmenga 
World J Gastroenterol 20(20):6302-6308. Published online May 28, 2014. doi: 10.3748/wjg.v20.i20.6302
Retrospective Study
Clinical Trials Study
Jung Im Jung, Gwang Ha Kim, Hoseok I, Do Youn Park, Tae Kyun Kim, Young Hwa Cho, Yong Wan Sung, Mun Ki Choi, Bong Eun Lee, Geun Am Song 
World J Gastroenterol 20(20):6322-6328. Published online May 28, 2014. doi: 10.3748/wjg.v20.i20.6322
Observational Study
Meta-Analysis
Case Report