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Joanny, J. -F.; Kruse, K.; Prost, J.; Ramaswamy, S. . (2013). Thalidomide use may be linked to second primary malignancies. Reactions Weekly, 1453(1), 4–4. doi:10.1007/s40278-013-3236-1 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research