6-hydroxy dopamine treatments enhance behavioral responses to intracerebral microinjection of D1 and D2 dopamine agonists into nucleus accumbens and striatum without changing dopamine antagonist binding - Breese,G.R.; Duncan,G.E.; Napier,T.C.; Bondy,S.C.; Iorio,L.C.; Mueller,R.A. (J Pharmacol Exp Ther, 1987)