Am J Public Health Nations Health. 1943 Jul;33(7):847-8. doi: 10.2105/ajph.33.7.847.
American journal of public health and the nation's health
[No authors listed]
PMID: 18015853 PMCID: PMC1527653 DOI: 10.2105/ajph.33.7.847
[No abstract available.]