Jacquet, Y F <br/><br/>
The periaqueductal gray: site of morphine analgesia and tolerance as shown by 2-way cross tolerance between systemic and intracerebral injections.  [electronic resource] 

 -  Brain research  Feb 1976 
 - 501-13 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0006-8993 
<br/><br/><label>Standard No.: </label>10.1016/0006-8993(76)90448-0  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Analgesia<br/>Animals<br/>Cerebral Aqueduct--drug effects<br/>Cerebral Cortex--drug effects<br/>Drug Tolerance<br/>Injections<br/>Injections, Intraperitoneal<br/>Male<br/>Morphine--administration & dosage<br/>Rats