PMCCPMCCPMCC

Search tips
Search criteria 

Advanced
Logo of pubhealthreporigLink to Publisher's site
 
Volume 43(7);  February 17, 1928
Article
Public Health Rep. Feb 17, 1928; 43(7): 375–447.
PMCID:
PMC1996705
Articles from Public Health Reports are provided here courtesy of
Association of Schools of Public Health