[Epidemics of diphtheria during the past year].  [electronic resource] 

 -  Pediatria polska  Sep 1951 
 - 1043-4 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0031-3939 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biometry<br/>Diphtheria--epidemiology<br/>Epidemics