| Literature DB >> 12262141 |
Abstract
Entities:
Keywords: Age Factors; Contraception; Contraception Termination; Contraceptive Effectiveness; Contraceptive Methods; Copper; Demographic Factors; Examinations And Diagnoses; Family Planning; Fertility; Fertility Measurements; Ingredients And Chemicals; Inorganic Chemicals; Insertion; Iud; Iud Material; Metals; Nulliparity; Parity; Population; Population Dynamics; Retention; Size; Use-effectiveness; Uterus
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Year: 1980 PMID： 12262141
Source DB: PubMed Journal: Contracept Deliv Syst ISSN： 0143-6112