PMCCPMCCPMCC

Search tips
Search criteria 

Advanced
Logo of pubhealthreporigLink to Publisher's site
 
Volume 22(42);  October 18, 1907
Article
Public Health Rep. 1907 October 18; 22(42): 1463–1504.
PMCID:
PMC1999424
Articles from Public Health Reports are provided here courtesy of
Association of Schools of Public Health