Am J Public Health (N Y). 1919 Nov;9(11):874-6. doi: 10.2105/ajph.9.11.874.
American journal of public health (New York, N.Y. : 1912)
E H Kopf
PMID: 18010203 PMCID: PMC1362639 DOI: 10.2105/ajph.9.11.874
[No abstract available.]