1. Evidence for conditioned tolerance of the tail-flick reflex;Advokat;Behav. Neural Biol.,1980
2. Influence of descending 5-hydroxytryptamine (5-HT) pathways on a reflex response to radiant heat;Berge;Neurosci. Lett.,1979
3. Morphine analgesia measured by the tail-flick (TF) test is not reduced by 5-hydroxytryptamine (5-HT) blockers;Berge;Neurosci. Lett.,1980
4. On the role of brain catecholamines in acute and chronic opiate action;Bläsig,1978
5. 5-Hydroxytryptamine in the spinal cord normally and after transection;Carlsson;Experientia,1963