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Open-Access Journal
Editorial
Manuel J Ramos-Ramirez, Salim Surani 
World J Meta-Anal 7(7):339-342. Published online Jul 31, 2019. doi: 10.13105/wjma.v7.i7.339
Hiroyuki Imaeda, Yoshikazu Tsuzuki, Kazuya Miyaguchi, Keigo Ashitani, Hideki Ohgo, Hidetomo Nakamoto 
World J Meta-Anal 7(7):343-345. Published online Jul 31, 2019. doi: 10.13105/wjma.v7.i7.343
Opinion Review
Systematic Reviews
Meta-Analysis
Di Luan, Zheng-Yu Wu, Yuan-Xiang Zhang, Li-Li Yuan, Yang Xu, Zhao-Hu Chu, Ling-Song Ma, Ya-Ping Wang, Shou-Cai Zhao 
World J Meta-Anal 7(7):358-372. Published online Jul 31, 2019. doi: 10.13105/wjma.v7.i7.358