Rubin, B A <br/><br/>
A note on the development of the bifurcated needle for smallpox vaccination.  [electronic resource] 

 -  WHO chronicle  May 1980 
 - 180-1 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0042-9694 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Needles--standards<br/>Smallpox Vaccine--administration & dosage