| Literature DB >> 4827383 |
Abstract
Entities:
Keywords: Age Factors; Clinical Research; Comparative Studies; Contraception; Contraception Termination; Contraceptive Effectiveness; Contraceptive Methods; Copper; Demographic Analysis; Demographic Factors; Evaluation; Examinations And Diagnoses; Family Planning; Fertility; Fertility Measurements; Ingredients And Chemicals; Inorganic Chemicals; Iud; Iud Material; Iud, Copper Releasing; Life Table Method; Metals; Nulliparity; Parity; Population; Population Dynamics; Research Methodology; Research Report; Size; Studies; Use-effectiveness
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Year: 1974 PMID: 4827383 DOI: 10.1016/0002-9378(74)90303-2
Source DB: PubMed Journal: Am J Obstet Gynecol ISSN: 0002-9378 Impact factor: 8.661