Am J Public Health (N Y). 1923 Jun;13(6):486. doi: 10.2105/ajph.13.6.486-a.
American journal of public health (New York, N.Y. : 1912)
[No authors listed]
PMID: 18010969 PMCID: PMC1354465 DOI: 10.2105/ajph.13.6.486-a
[No abstract available.]