| Literature DB >> 21727242 |
Vanitha N Sivalingam1, W Colin Duncan, Emma Kirk, Lucy A Shephard, Andrew W Horne.
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Year: 2011 PMID: 21727242 PMCID: PMC3213855 DOI: 10.1136/jfprhc-2011-0073
Source DB: PubMed Journal: J Fam Plann Reprod Health Care ISSN: 1471-1893