| Literature DB >> 5815087 |
J A Solon, R D Rigg, S H Jones, J J Feeney, J W Lingner, C G Sheps.
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Year: 1969 PMID: 5815087 PMCID: PMC1226550 DOI: 10.2105/ajph.59.6.936
Source DB: PubMed Journal: Am J Public Health Nations Health ISSN: 0002-9572