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Abstract
Entities: Chemical
Mesh: See more » CalciumCopperFemaleHumansIntrauterine DevicesProbabilityTime Factors
Substances: See more » CopperCalcium
Year: 1977 PMID: 890311 PMCID: PMC1631098 DOI: 10.1136/bmj.2.6083.387-a
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447