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Open-Access Journal
Review
Sang Mi Lee, Hong Soo Kim, Sangheun Lee, Jeong Won Lee 
World J Gastroenterol 25(11):1289-1306. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1289
Jiang-Hua Zhou, Jing-Jing Cai, Zhi-Gang She, Hong-Liang Li 
World J Gastroenterol 25(11):1307-1326. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1307
Basic Study
Ilias Gountas, Vana Sypsa, George Papatheodoridis, Kyriakos Souliotis, Kostas Athanasakis, Homie Razavi, Angelos Hatzakis 
World J Gastroenterol 25(11):1327-1340. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1327
Jong Lyul Lee, Seon Ae Roh, Chan Wook Kim, Yi Hong Kwon, Ye Jin Ha, Seon-Kyu Kim, Seon-Young Kim, Dong-Hyung Cho, Yong Sung Kim, Jin Cheon Kim 
World J Gastroenterol 25(11):1341-1354. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1341
Jing Fan, Chong-Jiu Chen, Yu-Chen Wang, Wei Quan, Jian-Wei Wang, Wei-Guang Zhang 
World J Gastroenterol 25(11):1355-1365. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1355
Case Control Study
Tarek Besheer, Hatem Elalfy, Mohamed Abd El-Maksoud, Ahmed Abd El-Razek, Saher Taman, Khaled Zalata, Wagdy Elkashef, Hossam Zaghloul, Heba Elshahawy, Doaa Raafat, Wafaa Elemshaty, Eman Elsayed, Abdel-Hady El-Gilany, Mahmoud El-Bendary 
World J Gastroenterol 25(11):1366-1377. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1366
Retrospective Study
Takuto Suzuki, Yoshiyasu Kitagawa, Rino Nankinzan, Taketo Yamaguchi 
World J Gastroenterol 25(11):1378-1386. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1378
Arata Sakai, Masahiro Tsujimae, Atsuhiro Masuda, Takao Iemoto, Shigeto Ashina, Kohei Yamakawa, Takeshi Tanaka, Shunta Tanaka, Yasutaka Yamada, Ryota Nakano, Yu Sato, Manabu Kurosawa, Takuya Ikegawa, Seiji Fujigaki, Takashi Kobayashi, Hideyuki Shiomi, Yoshifumi Arisaka, Tomoo Itoh, Yuzo Kodama 
World J Gastroenterol 25(11):1387-1397. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1387
Lung-Yi Mak, Wai-Pan To, Danny Ka-Ho Wong, James Fung, Fen Liu, Wai-Kay Seto, Ching-Lung Lai, Man-Fung Yuen 
World J Gastroenterol 25(11):1398-1408. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1398
Observational Study
Ana Florencia Costa, Emilia Sugai, María de la Paz Temprano, Sonia Isabel Niveloni, Horacio Vázquez, María Laura Moreno, M. Remedios Domínguez-Flores, Alba Muñoz-Suano, Edgardo Smecuol, Juan Pablo Stefanolo, Andrea F González, Angel Cebolla-Ramirez, Eduardo Mauriño, Elena F Verdú, Julio César Bai 
World J Gastroenterol 25(11):1409-1420. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1409
Randomized Clinical Trial
Yi Shao, Yong-Xing Fu, Qing-Fa Wang, Zhi-Qiang Cheng, Guang-Yong Zhang, San-Yuan Hu 
World J Gastroenterol 25(11):1421-1431. Published online Mar 21, 2019. doi: 10.3748/wjg.v25.i11.1421
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