Am J Public Health (N Y). 1919 Feb;9(2):128-9. doi: 10.2105/ajph.9.2.128-b.
American journal of public health (New York, N.Y. : 1912)
[No authors listed]
PMID: 18010039 PMCID: PMC1362400 DOI: 10.2105/ajph.9.2.128-b
[No abstract available.]