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KLINE, NATHAN S.; SACKS, WILLIAM . (1963). RELIEF OF DEPRESSION WITHIN ONE DAY USING AN M.A.O. INHIBITOR AND INTRAVENOUS 5-HTP. American Journal of Psychiatry, 120(3), 274–275. doi:10.1176/ajp.120.3.274 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research