| Literature DB >> 5689324 |
D C Cavanaugh, H G Dangerfield, D H Hunter, R J Joy, J D Marshall, D V Quy, S Vivona, P E Winter.
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Year: 1968 PMID: 5689324 PMCID: PMC1228386 DOI: 10.2105/ajph.58.4.742
Source DB: PubMed Journal: Am J Public Health Nations Health ISSN: 0002-9572