Langer, W L <br/><br/>
Immunization against smallpox before Jenner.  [electronic resource] 

 -  Scientific American  Jan 1976 
 - 112-7 p.  digital 
<br/><br/> Publication Type: Historical Article; Journal Article 
<br/><br/><label>ISSN: </label>0036-8733 
<br/><br/><label>Standard No.: </label>10.1038/scientificamerican0176-112  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History, 17th Century<br/>History, 18th Century<br/>History, 19th Century<br/>Humans<br/>Smallpox--history<br/>Smallpox Vaccine--history<br/>United Kingdom<br/>United States