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Wang, Youhua; Wang, Ben; Lv, Zhi Fa; Yang, Yang; Wang, Fucai; Wang, Hui; Chen, Shuping; Xie, Yong; Zhou, Xiaojiang . (2014). Efficacy and Safety of Ecabet Sodium as an Adjuvant Therapy for <i>Helicobacter pylori</i> Eradication: A Systematic Review and Meta-Analysis. Helicobacter, 19(5), 372–381. doi:10.1111/hel.12136 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research