| Literature DB >> 21968782 |
Pai-Lien Chen, Stephen R Cole, Charles S Morrison.
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Year: 2011 PMID: 21968782 PMCID: PMC4551514 DOI: 10.1097/EDE.0b013e3182319910
Source DB: PubMed Journal: Epidemiology ISSN: 1044-3983 Impact factor: 4.822