Am J Public Health (N Y). 1924 Jun;14(6):522-4. doi: 10.2105/ajph.14.6.522.
American journal of public health (New York, N.Y. : 1912)
[No authors listed]
PMID: 18011251 PMCID: PMC1354910 DOI: 10.2105/ajph.14.6.522
[No abstract available.]