PMCCPMCCPMCC

Search tips
Search criteria 

Advanced
Logo of pubhealthreporigLink to Publisher's site
 
Volume 64(36);  September 9, 1949
Article
Public Health Rep. Sep 9, 1949; 64(36): 1133–1168.
PMCID:
PMC1996995
Articles from Public Health Reports are provided here courtesy of
Association of Schools of Public Health