Am J Public Health Nations Health. 1946 Nov;36(11):1313-4. doi: 10.2105/ajph.36.11.1313.
American journal of public health and the nation's health
[No authors listed]
PMID: 18016449 PMCID: PMC1625880 DOI: 10.2105/ajph.36.11.1313
[No abstract available.]