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Open-Access Journal
Retrospective Cohort Study
Yoshihide Kanno, Kei Ito, Shinsuke Koshita, Takahisa Ogawa, Kaori Masu, Yoshiharu Masaki, Yutaka Noda 
World J Gastrointest Endosc 9(7):304-309. Published online Jul 16, 2017. doi: 10.4253/wjge.v9.i7.304
Retrospective Study
Nina Gupta, Uzma Siddiqui, Irving Waxman, Christopher Chapman, Ann Koons, Vesta Valuckaite, Shu-Yuan Xiao, Namrata Setia, John Hart, Vani Konda 
World J Gastrointest Endosc 9(7):319-326. Published online Jul 16, 2017. doi: 10.4253/wjge.v9.i7.319
Observational Study
Jay Toshniwal, Romesh Chawlani, Amit Thawrani, Rajesh Sharma, Anil Arora, Hardik L Kotecha, Mohan Goyal, Vijendra Kirnake, Pankaj Jain, Pankaj Tyagi, Naresh Bansal, Munish Sachdeva, Piyush Ranjan, Mandhir Kumar, Praveen Sharma, Vikas Singla, Rinkesh Bansal, Vineet Shah, Sunita Bhalla, Ashish Kumar 
World J Gastrointest Endosc 9(7):327-333. Published online Jul 16, 2017. doi: 10.4253/wjge.v9.i7.327
Prospective Study
Kazuya Akahoshi, Masaru Kubokawa, Junya Gibo, Shigeki Osada, Kayo Tokumaru, Eriko Yamaguchi, Hiroko Ikeda, Takao Sato, Kazuaki Miyamoto, Yusuke Kimura, Yuki Shiratsuchi, Kazuaki Akahoshi, Masafumi Oya, Hidenobu Koga, Eikichi Ihara, Kazuhiko Nakamura 
World J Gastrointest Endosc 9(7):334-340. Published online Jul 16, 2017. doi: 10.4253/wjge.v9.i7.334
Case Report