(Q44213563)
Statements
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Long-term contraception with the levonorgestrel 20 mcg/day (LNg 20) and the copper T 380Ag intrauterine devices: a five-year randomized study (English)
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I Sivin
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S el Mahgoub
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T McCarthy
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D R Mishell
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D Shoupe
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F Alvarez
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V Brache
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E Jimenez
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J Diaz
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A Faundes
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1 October 1990
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42
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4
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361-378
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Identifiers
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