RT Journal Article SR Electronic T1 Ligand-Directed Functional Heterogeneity of Histamine H1 Receptors: Novel Dual-Function Ligands Selectively Activate and Block H1-Mediated Phospholipase C and Adenylyl Cyclase Signaling JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics DO 10.1124/jpet.104.070086 A1 Nader H. Moniri A1 Dawn Covington-Strachan A1 Raymond G. Booth YR 2004 UL http://jpet.aspetjournals.org/content/early/2004/05/28/jpet.104.070086.abstract AB