PMCCPMCCPMCC

Search tips
Search criteria 

Advanced
Logo of pubhealthreporigLink to Publisher's site
 
Volume 42(13);  April 1, 1927
Article
Public Health Rep. Apr 1, 1927; 42(13): 861–921.
PMCID:
PMC1999028
Articles from Public Health Reports are provided here courtesy of
Association of Schools of Public Health