Research ArticleArticle
Periaqueductal Gray Stimulation-Induced Inhibition of Nociceptive Dorsal Horn Neurons in Rats Is Associated with the Release of Norepinephrine, Serotonin, and Amino Acids
M. Cui, Y. Feng, D. J. McAdoo and W. D. Willis
Journal of Pharmacology and Experimental Therapeutics May 1999, 289 (2) 868-876;