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Sanghera, Sabina; Frew, Emma; Gupta, Janesh Kumar; Kai, Joe; Roberts, Tracy Elizabeth . (2015). Exploring the Use of Cost-Benefit Analysis to Compare Pharmaceutical Treatments for Menorrhagia. PharmacoEconomics, 33(9), 957–965. doi:10.1007/s40273-015-0280-0 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research