Am J Public Health Nations Health. 1928 Feb;18(2):224-8. doi: 10.2105/ajph.18.2.224.
American journal of public health and the nation's health
E R Hayhurst, L Greenburg
PMID: 18012409 PMCID: PMC1580398 DOI: 10.2105/ajph.18.2.224
[No abstract available.]