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Effect of time-out duration on the reinforcing strength of cocaine assessed under a progressive-ratio schedule in rhesus monkeys.

Martelle JL, Czoty PW, Nader MA. Effect of time-out duration on the reinforcing strength of cocaine assessed under a progressive-ratio schedule in rhesus monkeys. Behav Pharmacol. 2008 Oct; 19(7):743-6.

View in: PubMed