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Cocaine in Blood Plasma

Description
The graph shows the concentration of cocaine in blood plasma after intravenous injection, inhalation, oral administration, and sniffing. (Adapted from Feldman, R. S., Meyer, J. S., and Quenzer, L. F. Principles of Neuropsychopharmacology. Sunderland, MA: Sinauer Associates, 1997; after Jones, R. T. NIDA Research Monographs, 1990, 99, 30–41.)
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