PMCCPMCCPMCC

Search tips
Search criteria 

Advanced
Logo of pubhealthreporigLink to Publisher's site
 
Volume 31(6);  February 11, 1916
Article
Public Health Rep. Feb 11, 1916; 31(6): 295–357.
PMCID:
PMC2013648
Articles from Public Health Reports are provided here courtesy of
Association of Schools of Public Health