Norrby, E <br/><br/>
[What is a virus?].  [electronic resource] 

 -  Tandlakartidningen  Nov 1971 
 - 826-33 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0039-6982 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Viruses