Delta 9-tetrahydrocannabinol increases prefrontal cortical catecholaminergic utilization and impairs spatial working memory in the rat: blockade of dopaminergic effects with HA966. - Jentsch,J.D.; Andrusiak,E.; Tran,A.; Bowers,M.B.; Roth,R.H. (Neuropsychopharmacology, 1997)