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Četojević-Simin, Dragana D.; Čanadanović-Brunet, Jasna M.; Bogdanović, Gordana M.; Djilas, Sonja M.; Ćetković, Gordana S.; Tumbas, Vesna T.; Stojiljković, Bratislav T. . (2010). Antioxidative and Antiproliferative Activities of Different Horsetail ( <i>Equisetum arvense</i> L.) Extracts. Journal of Medicinal Food, 13(2), 452–459. doi:10.1089/jmf.2008.0159 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research