Research ArticleNEUROPHARMACOLOGY
The Antitussive Activity of δ-Opioid Receptor Stimulation in Guinea Pigs
Charles J. Kotzer, Douglas W. P. Hay, Giulio Dondio, Giuseppe Giardina, Paola Petrillo and David C. Underwood
Journal of Pharmacology and Experimental Therapeutics February 2000, 292 (2) 803-809;