Review
Clinical pharmacology of opioids for pain.
Clin J Pain. 2002 Jul 1; 18 (4 Suppl): S3S13S3-13.
Review
Advances in opioid pharmacology.
Support Care Cancer. 2005 Mar 1;13(3):153-9.
Article
Enhancement mu opioid antinociception by oral delta9-tetrahydrocannabinol: dose-response analysis and receptor identification.
J. Pharmacol. Exp. Ther. 1999 May 1;289(2):859-67.