(Q34604853)
Statements
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Effectiveness of levonorgestrel emergency contraception given before or after ovulation--a pilot study (English)
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Natalia Novikova
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Edith Weisberg
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Frank Z Stanczyk
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Horacio B Croxatto
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Ian S Fraser
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27 October 2006
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75
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2
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112-118
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Identifiers
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1 reference