| Literature DB >> 21968779 |
Chanelle J Howe, Stephen R Cole, Daniel J Westreich, Sander Greenland, Sonia Napravnik, Joseph J Eron.
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Year: 2011 PMID: 21968779 PMCID: PMC3192444 DOI: 10.1097/EDE.0b013e31823029dd
Source DB: PubMed Journal: Epidemiology ISSN: 1044-3983 Impact factor: 4.822