(Q44375497)
Statements
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Protective effect of intrauterine release of levonorgestrel on pelvic infection: three years' comparative experience of levonorgestrel- and copper-releasing intrauterine devices (English)
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Toivonen J
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Luukkainen T
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Allonen H
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1 February 1991
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77
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2
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261-264
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Identifiers
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1 reference