Plotkin, Stanley A <br/><br/>
Why certain vaccines have been delayed or not developed at all.  [electronic resource] 

 -  Health affairs (Project Hope)   
 - 631-4 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0278-2715 
<br/><br/><label>Standard No.: </label>10.1377/hlthaff.24.3.631  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developing Countries<br/>Drug Approval--legislation & jurisprudence<br/>Drug Industry--economics<br/>Government Regulation<br/>Public Health Administration<br/>United States<br/>Vaccines--supply & distribution