Progress in sleep.  [electronic resource] 

 -  The New England journal of medicine  May 1987 
 - 1275-7 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0028-4793 
<br/><br/><label>Standard No.: </label>10.1056/NEJM198705143162013  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acetylmuramyl-Alanyl-Isoglutamine--pharmacology<br/>Adenosine--pharmacology<br/>Animals<br/>Sleep--drug effects