Rietveld, W J <br/><br/>
[24-hour rhythms].  [electronic resource] 

 -  Nederlands tijdschrift voor geneeskunde  Jan 1971 
 - 38-48 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0028-2162 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Biological Clocks<br/>Circadian Rhythm