Solomon, R E <br/><br/>
Opioid receptor subtype-specific cross-tolerance to the effects of morphine on schedule-controlled behavior in mice.  [electronic resource] 

 -  Psychopharmacology  1988 
 - 218-22 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0033-3158 
<br/><br/><label>Standard No.: </label>10.1007/BF00177563  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Conditioning, Operant--drug effects<br/>Cyclazocine--analogs & derivatives<br/>Drug Tolerance<br/>Enkephalin, Methionine--pharmacology<br/>Ethylketocyclazocine<br/>Ketamine--pharmacology<br/>Levorphanol--pharmacology<br/>Male<br/>Mice<br/>Morphine--pharmacology<br/>Receptors, Opioid--drug effects<br/>Reinforcement Schedule