Jones, R W Effect of copper-containing intrauterine contraceptive devices on human cells in culture. [electronic resource] - British medical journal Jun 1973 - 520-3 p. digital Publication Type: Journal Article ISSN: 0007-1447 Standard No.: 10.1136/bmj.2.5865.520 doi Subjects--Topical Terms: Amniotic Fluid--cytologyCells, CulturedCopper--analysisEpithelial CellsFetusFibroblasts--drug effectsHistocytochemistryHumansIntrauterine DevicesMicroscopy, Phase-ContrastSkin--cytologyStatistics as Topic