Research ArticleArticle
Enhancement of μ Opioid Antinociception by Oral Δ9-Tetrahydrocannabinol: Dose-Response Analysis and Receptor Identification
Diana L. Cichewicz, Zachary L. Martin, Forrest L. Smith and Sandra P. Welch
Journal of Pharmacology and Experimental Therapeutics May 1999, 289 (2) 859-867;