| Literature DB >> 19341843 |
James Trussell1, Eleanor Bimla Schwarz, Katherine Guthrie.
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Year: 2009 PMID: 19341843 PMCID: PMC3638205 DOI: 10.1016/j.contraception.2008.11.017
Source DB: PubMed Journal: Contraception ISSN: 0010-7824 Impact factor: 3.375