Abstract
Ketamine- and morphine-induced analgesia and catalepsy. I. Tolerance, cross-tolerance, potentiation, residual morphine levels and naloxone action in the rat.
W D Winters, A J Hance, G G Cadd, D D Quam and J L Benthuysen
Journal of Pharmacology and Experimental Therapeutics January 1988, 244 (1) 51-57;