Pyhälä, R <br/><br/>
[Can "Spanish disease" repeat itself?].  [electronic resource] 

 -  Duodecim; laaketieteellinen aikakauskirja  1992 
 - 537-9 p.  digital 
<br/><br/> Publication Type: Editorial 
<br/><br/><label>ISSN: </label>0012-7183 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Birds--virology<br/>Humans<br/>Influenza Vaccines<br/>Influenza, Human--epidemiology<br/>Swine--virology