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Abstract
Mesh: See more » Contraceptive DevicesEvaluation Studies as TopicFemaleHumansPregnancyPuerto RicoStatistics as TopicUnited States
Year: 1965 PMID: 5891887 PMCID: PMC1256701 DOI: 10.2105/ajph.55.12.1874
Source DB: PubMed Journal: Am J Public Health Nations Health ISSN: 0002-9572