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DiGiorgio, Catherine M.; Wu, Douglas C.; Goldman, Mitchel P. . (2016). Successful Treatment of Argyria Using the Picosecond Alexandrite Laser. Dermatologic Surgery, 42(3), 431–433. doi:10.1097/dss.0000000000000610 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research