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Full article: Real-world experience with the IUB Ballerine MIDI copper IUD: an observational study in the French-speaking region of Switzerland
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Double s-shaped IUD, some parts of the loop covered with pieces of copper, white plastic string attached. | Dittrick Medical History Center
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IntraUterinBall, IUB, Copper bead ball with guide tube, Hormone-free contraception with shape memory, Dynamic contraceptive system Stock Photo - Alamy
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Prevention of intrauterine contraceptive device expulsion and intolerance: Determination of the anchor mechanism
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Risk assessment of copper-containing contraceptives: the impact for women with implanted intrauterine devices during clinical MRI and CT examinations | SpringerLink
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