Am J Public Health Nations Health. 1950 Apr;40(4):427-35. doi: 10.2105/ajph.40.4.427.
American journal of public health and the nation's health
S Saslaw, C C Campbell
PMID: 18017194 PMCID: PMC1528457 DOI: 10.2105/ajph.40.4.427
[No abstract available.]