| Literature DB >> 21778499 |
Rita Livingston Underwood, Henrie Treadwell.
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Year: 2011 PMID: 21778499 PMCID: PMC3154214 DOI: 10.2105/AJPH.2011.300276
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308