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Ghani, K.R.; Roberts, W.W. . (2017). Dusting utilizing suction technique (DUST) for percutaneous nephrolithotomy: Use of a dedicated laser handpiece to treat a staghorn stone. European Urology Supplements, 16(3), e2105–e2106. doi:10.1016/s1569-9056(17)31269-1 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research