Am J Public Health (N Y). 1917 Apr;7(4):378-9. doi: 10.2105/ajph.7.4.378.
American journal of public health (New York, N.Y. : 1912)
[No authors listed]
PMID: 18009651 PMCID: PMC1361813 DOI: 10.2105/ajph.7.4.378
[No abstract available.]