Am J Public Health (N Y). 1915 Jun;5(6):516-8. doi: 10.2105/ajph.5.6.516.
American journal of public health (New York, N.Y. : 1912)
[No authors listed]
PMID: 18009246 PMCID: PMC1286618 DOI: 10.2105/ajph.5.6.516
[No abstract available.]