Curative and Preventive Medicine.  [electronic resource] 

 -  American journal of public health and the nation's health  Aug 1937 
 - 828-30 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0002-9572 
<br/><br/><label>Standard No.: </label>10.2105/ajph.27.8.828  doi