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Lins, R. L.; Elseviers, M. M.; Van der Niepen, P.; Hoste, E.; Malbrain, M. L.; Damas, P.; Devriendt, J. . (2008). Intermittent versus continuous renal replacement therapy for acute kidney injury patients admitted to the intensive care unit: results of a randomized clinical trial. Nephrology Dialysis Transplantation, 24(2), 512–518. doi:10.1093/ndt/gfn560 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research