| Literature DB >> 4463005 |
Abstract
Keywords: Age Factors; Coitus; Contraception; Contraceptive Effectiveness; Contraceptive Methods Chosen; Contraceptive Usage; Epidemiologic Methods; Family Planning; Reproduction; Research Methodology; Research Report; United States; Use-effectiveness; Women
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Year: 1974 PMID: 4463005
Source DB: PubMed Journal: Fam Plann Perspect ISSN: 0014-7354