Nelson, N <br/><br/>
Comments on research needs.  [electronic resource] 

 -  Environmental health perspectives  Apr 1972 
 - 181-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0091-6765 
<br/><br/><label>Standard No.: </label>10.1289/ehp.7201181  doi