| Literature DB >> 4862966 |
V M Young, M R Lee, W C Branche, D M Kenton.
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Year: 1967 PMID: 4862966 PMCID: PMC1228001 DOI: 10.2105/ajph.57.12.2104
Source DB: PubMed Journal: Am J Public Health Nations Health ISSN: 0002-9572