TSUDA, T <br/><br/>
Studies on the herd immunity of schoolchildren against diphtheria. 1. Schick negative rate of schoolchildren and booster immunization.  [electronic resource] 

 -  Yokohama medical bulletin  Feb 1963 
 - 11-20 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0044-0531 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diphtheria<br/>Humans<br/>Immunity, Herd<br/>Immunization, Secondary