Campbell, J D <br/><br/>
Pneumococcal vaccines.  [electronic resource] 

 -  Drugs of today (Barcelona, Spain : 1998)  Jun 1999 
 - 461-72 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1699-3993 
<br/><br/><label>Standard No.: </label>10.1358/dot.1999.35.6.544932  doi