SEPULVEDA, R D <br/><br/>
[Smallpox vaccination and its complications in the first month of the mass vaccination campaign in 1950].  [electronic resource] 

 -  Acta pediatrica espanola  Feb 1951 
 - 127-42 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0001-6640 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Mass Vaccination<br/>Smallpox<br/>Vaccination<br/>Variola virus