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Nathani, M.G.; Mutchnick, M.G.; Tynes, D.J.; Ehrinpreis, M.N. . (1998). An Unusual Case of Amoxicillin/Clavulanic Acid-Related Hepatotoxicity. The American Journal of Gastroenterology, 93(8), 1363–1365. doi:10.1111/j.1572-0241.1998.00418.x 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research