| Literature DB >> 4855495 |
J Fielding, P Batalden, G Tolbert, R Bennett, S H Nelson.
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Year: 1974 PMID: 4855495 PMCID: PMC1775436 DOI: 10.2105/ajph.64.5.427
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308