Am J Public Health (N Y). 1924 Feb;14(2):106-18. doi: 10.2105/ajph.14.2.106.
American journal of public health (New York, N.Y. : 1912)
[No authors listed]
PMID: 18011140 PMCID: PMC1354721 DOI: 10.2105/ajph.14.2.106
[No abstract available.]