| Literature DB >> 5460821 |
W E Woodward, E J Gangarosa, P S Brachman, G T Curlin.
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Year: 1970 PMID: 5460821 PMCID: PMC1349590 DOI: 10.2105/ajph.60.1.130
Source DB: PubMed Journal: Am J Public Health Nations Health ISSN: 0002-9572