OtherANALGESIA AND DRUGS OF ABUSE
Opioids Binding Mu and DeltaReceptors Exhibit Diverse Efficacy in the Activation of Gi2and Gx/z Transducer Proteins in Mouse Periaqueductal Gray Matter
Javier Garzón, Antonio García-España and Pilar Sánchez-Blázquez
Journal of Pharmacology and Experimental Therapeutics April 1997, 281 (1) 549-557;