| Literature DB >> 5813160 |
J E Davies, W F Edmundson, A Maceo, A Barquet, J Cassady.
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Year: 1969 PMID: 5813160 PMCID: PMC1226422 DOI: 10.2105/ajph.59.3.435
Source DB: PubMed Journal: Am J Public Health Nations Health ISSN: 0002-9572