Am J Public Health Nations Health. 1937 Jan;27(1):67-72. doi: 10.2105/ajph.27.1.67.
American journal of public health and the nation's health
C E Shepard
PMID: 18014568 PMCID: PMC1563029 DOI: 10.2105/ajph.27.1.67
[No abstract available.]