Am J Public Health (N Y). 1915 Mar;5(3):206. doi: 10.2105/ajph.5.3.206.
American journal of public health (New York, N.Y. : 1912)
[No authors listed]
PMID: 18009197 PMCID: PMC1286553 DOI: 10.2105/ajph.5.3.206
[No abstract available.]