PMCCPMCCPMCC

Search tips
Search criteria 

Advanced
Logo of pubhealthreporigLink to Publisher's site
 
Volume 20(31);  August 4, 1905
Article
Public Health Rep. Aug 4, 1905; 20(31): 1555–1615.
PMCID:
PMC2080955
Articles from Public Health Reports are provided here courtesy of
Association of Schools of Public Health