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Open-Access Journal
Editorial
Review
Oscar Murcia, Miriam Juárez, Eva Hernández-Illán, Cecilia Egoavil, Mar Giner-Calabuig, María Rodríguez-Soler, Rodrigo Jover 
World J Gastroenterol 22(13):3516-3530. Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3516
Minireviews
Basic Study
Hirohito Mori, Nobuya Kobayashi, Hideki Kobara, Noriko Nishiyama, Shintaro Fujihara, Taiga Chiyo, Maki Ayaki, Takashi Nagase, Tsutomu Masaki 
World J Gastroenterol 22(13):3558-3563. Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3558
Case Control Study
Yamilka Abreu-Delgado, Raymond A Isidro, Esther A Torres, Alexandra González, Myrella L Cruz, Angel A Isidro, Carmen I González-Keelan, Priscilla Medero, Caroline B Appleyard 
World J Gastroenterol 22(13):3581-3591. Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3581
Retrospective Cohort Study
Francesco Feroci, Andrea Vannucchi, Paolo Pietro Bianchi, Stefano Cantafio, Alessia Garzi, Giampaolo Formisano, Marco Scatizzi 
World J Gastroenterol 22(13):3602-3610. Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3602
Ji Yeon Kim, Yoon Suk Jung, Jung Ho Park, Hong Joo Kim, Yong Kyun Cho, Chong Il Sohn, Woo Kyu Jeon, Byung Ik Kim, Kyu Yong Choi, Dong Il Park 
World J Gastroenterol 22(13):3611-3620. Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3611
Retrospective Study
Tilmann Graeter, Wolfgang Kratzer, Suemeyra Oeztuerk, Mark Martin Haenle, Richard Andrew Mason, Andreas Hillenbrand, Thomas Kull, Thomas F Barth, Peter Kern, Beate Gruener 
World J Gastroenterol 22(13):3621-3631. Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3621
Hai-Hong Ye, Jia-Zhou Ye, Zhi-Bo Xie, Yu-Chong Peng, Jie Chen, Liang Ma, Tao Bai, Jun-Ze Chen, Zhan Lu, Hong-Gui Qin, Bang-De Xiang, Le-Qun Li 
World J Gastroenterol 22(13):3632-3643. Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3632
Clinical Trials Study
Quirijn R J G Tummers, Leonora S F Boogerd, Wobbe O de Steur, Floris P R Verbeek, Martin C Boonstra, Henricus J M Handgraaf, John V Frangioni, Cornelis J H van de Velde, Henk H Hartgrink, Alexander L Vahrmeijer 
World J Gastroenterol 22(13):3644-3651. Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3644
Observational Study
Prospective Study
Meta-Analysis
Case Report
Seoung Ho Lee, Tae Hoon Lee, Si-Hyong Jang, Chi Young Choi, Won Myung Lee, Ji Hey Min, Hyun Deuk Cho, Sang-Heum Park 
World J Gastroenterol 22(13):3687-3692. Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3687