PMCCPMCCPMCC

Search tips
Search criteria 

Advanced
Logo of pubhealthreporigLink to Publisher's site
 
Volume 42(12);  March 25, 1927
Article
Public Health Rep. Mar 25, 1927; 42(12): 799–859.
PMCID:
PMC1999027
Articles from Public Health Reports are provided here courtesy of
Association of Schools of Public Health