RT Journal Article SR Electronic T1 Evidence for Functional Release of Endogenous Opioids in the Locus Ceruleus during Stress Termination JF The Journal of Neuroscience JO J. Neurosci. FD Society for Neuroscience SP RC152 OP RC152 DO 10.1523/JNEUROSCI.21-13-j0001.2001 VO 21 IS 13 A1 Curtis, Andre L. A1 Bello, Nicholas T. A1 Valentino, Rita J. YR 2001 UL http://www.jneurosci.org/content/21/13/RC152.abstract AB