PMCCPMCCPMCC

Search tips
Search criteria 

Advanced
Logo of pubhealthreporigLink to Publisher's site
 
Volume 42(32);  August 12, 1927
Article
Public Health Rep. Aug 12, 1927; 42(32): 2045–2096.
PMCID:
PMC1999051
Articles from Public Health Reports are provided here courtesy of
Association of Schools of Public Health