Am J Public Health Nations Health. 1938 Feb;28(2):167-73. doi: 10.2105/ajph.28.2.167.
American journal of public health and the nation's health
J H Korns
PMID: 18014781 PMCID: PMC1528912 DOI: 10.2105/ajph.28.2.167
[No abstract available.]