| Literature DB >> 21886341 |
Michael Halperin1, Valerie A Paz-Soldán, Victor Quispe, Anne Paxton, Robert H Gilman.
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Year: 2011 PMID: 21886341 PMCID: PMC3151198 DOI: 10.1177/003335491112600521
Source DB: PubMed Journal: Public Health Rep ISSN: 0033-3549 Impact factor: 2.792