Am J Public Health Nations Health. 1938 Sep;28(9):1065-8. doi: 10.2105/ajph.28.9.1065.
American journal of public health and the nation's health
E J Cope, J A Kasper
PMID: 18014906 PMCID: PMC1527956 DOI: 10.2105/ajph.28.9.1065
[No abstract available.]