(Q34189356)
Statements
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Estimating the effectiveness of emergency contraceptive pills (English)
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James Trussell
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Charlotte Ellertson
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Helena von Hertzen
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Allison Bigrigg
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Anne Webb
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Margaret Evans
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Sue Ferden
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Clare Leadbetter
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1 April 2003
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67
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259-265
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Identifiers
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