Reed, M <br/><br/>
Endorphin update.  [electronic resource] 

 -  Headache  May 1980 
 - 146-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0017-8748 
<br/><br/><label>Standard No.: </label>10.1111/j.1526-4610.1980.hed2003146.x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Blood-Brain Barrier--drug effects<br/>Endorphins--analysis<br/>Humans<br/>Placenta--analysis