|Number of pages
|NIDA Research Monograph Series
|Published - 1993
Bibliographical noteFunding Information:
The assistanceo f Gilbert0 Carmona, Sylvie Lac and Joshua Rodefer in conducting these experimentsi s greatly appreciated.D r. Steven Hursh is gratefully acknowledgedf or assistance in analyzing the data presentedi n Fig. 1. This work was supportedb y grants R37 DA 03240, ROl DA 02486,a nd T32 DA 07097f rom the National Institute on Drug Abuse. Portions of this paper were presenteda t the annual meeting of the College on Problems of Drug Dependence, Keystone, Colorado, June 1992.