| Literature DB >> 835767 |
M R Horner, M S Christine, M Olson, D J Pringle.
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Year: 1977 PMID: 835767 PMCID: PMC1653539 DOI: 10.2105/ajph.67.2.185
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308