Kodicek, E <br/><br/>
Biological activity of a polar metabolite of vitamin D.  [electronic resource] 

 -  Nature  Nov 1970 
 - 763-4 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0028-0836 
<br/><br/><label>Standard No.: </label>10.1038/228763a0  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Biological Assay<br/>Calcium--metabolism<br/>Calcium Isotopes<br/>Carbon Isotopes<br/>Chickens<br/>Cholecalciferol--blood<br/>Intestinal Absorption<br/>Tritium