PMCCPMCCPMCC

Search tips
Search criteria 

Advanced
Logo of pubhealthreporigLink to Publisher's site
 
Volume 20(35);  September 1, 1905
Article
Public Health Rep. Sep 1, 1905; 20(35): 1803–1870.
PMCID:
PMC2080961
Articles from Public Health Reports are provided here courtesy of
Association of Schools of Public Health