Opiate and non-opiate analgesia induced by inescapable tail-shock: effects of dorsolateral funiculus lesions and decerebration.
Watkins LR, Drugan R, Hyson RL, Moye TB, Ryan SM, Mayer DJ, Maier SF. Opiate and non-opiate analgesia induced by inescapable tail-shock: effects of dorsolateral funiculus lesions and decerebration. Brain Res. 1984 Jan 23; 291(2):325-36.