RT Journal Article SR Electronic T1 The Pharmacology of Two Novel Long-acting Phosphodiesterase 3/4 Inhibitors RPL554 and RPL565 JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics DO 10.1124/jpet.105.099192 A1 Victoria Boswell-Smith A1 Domenico Spina A1 Alec Oxford A1 Michael Comer A1 Esther Seeds A1 Clive Page YR 2006 UL http://jpet.aspetjournals.org/content/early/2006/05/08/jpet.105.099192.abstract AB