OtherANALGESIA AND DRUGS OF ABUSE
Repetitive Opioid Abstinence Causes Progressive Hyperalgesia Sensitive to N-Methyl-d-aspartate Receptor Blockade in the Rat
Stuart A. Dunbar and Istvan J. Pulai
Journal of Pharmacology and Experimental Therapeutics February 1998, 284 (2) 678-686;