Villarejos, V M <br/><br/>
[Study of the effectiveness and safety of rubella vaccine].  [electronic resource] 

 -  Boletin de la Oficina Sanitaria Panamericana. Pan American Sanitary Bureau  Feb 1971 
 - 174-80 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0030-0632 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Child<br/>Child, Preschool<br/>Costa Rica<br/>Humans