Am J Public Health (N Y). 1925 Nov;15(11):991-2. doi: 10.2105/ajph.15.11.991.
American journal of public health (New York, N.Y. : 1912)
[No authors listed]
PMID: 18011683 PMCID: PMC1320895 DOI: 10.2105/ajph.15.11.991
[No abstract available.]