OtherANALGESIA AND DRUGS OF ABUSE
Enhancement of Analgesia from Systemic Opioid in Humans by Spinal Cholinesterase Inhibition
David D. Hood, Kathryn A. Mallak, Robert L. James, Robin Tuttle and James C. Eisenach
Journal of Pharmacology and Experimental Therapeutics July 1997, 282 (1) 86-92;