RT Journal Article SR Electronic T1 Thienorphine is a Potent Long-acting Partial Opioid Agonist: a Comparative Study with Buprenorphine JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics DO 10.1124/jpet.105.099937 A1 Gang Yu A1 Yong-Juan Yue A1 Meng-Xun Cui A1 Ze-Hui Gong YR 2006 UL http://jpet.aspetjournals.org/content/early/2006/03/28/jpet.105.099937.abstract AB