Recent advances in immunization : a bibliographic review. 

 - v, 102 p. 
 - Scientific publication ;  no. 451 .
 - Scientific publication - Pan American Health Organization ;  no. 451. .
<br/><br/><label>ISBN: </label>927511451X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Immunization<br/>Developing Countries<br/>Vaccination