VACCINATION against smallpox.  [electronic resource] 

 -  Monthly bulletin of the Ministry of Health and the Public Health Laboratory Service  Oct 1947 
 - 164-9 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0368-881X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Smallpox<br/>Vaccination<br/>Variola virus