| Literature DB >> 1119637 |
G V Long, C Whitman, M S Johansson, C A Williams, R W Tuthill.
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Year: 1975 PMID: 1119637 PMCID: PMC1775801 DOI: 10.2105/ajph.65.4.388
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308