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Santos, V.N.; Lanzoni, V.P.; Szejnfeld, J.; Shigueoka, D.; Parise, E.R. . (2003). A randomized double-blind study of the short-time treatment of obese patients with nonalcoholic fatty liver disease with ursodeoxycholic acid. Brazilian Journal of Medical and Biological Research, 36(6), 723–729. doi:10.1590/s0100-879x2003000600007 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research