Trends in knowledge of emergency contraception among women in California, 1999–2004

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Unintended Pregnancy in the United States

Stanley K. Henshaw · Family Planning Perspectives · 1998 · 1.4K citations

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Contraceptive Use among U.S. Women Having Abortions in 2000-2001

Rachel K. Jones, Jacqueline E. Darroch, Stanley K. Henshaw · Perspectives on Sexual and Reproductive Health · 2002 · 340 citations

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Effectiveness of emergency contraceptive pills between 72 and 120 hours after unprotected sexual intercourse

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Updated estimates of the effectiveness of the Yuzpe regimen of emergency contraception

James Trussell, Germán Rodrı́guez, Charlotte Ellertson · Contraception · 1999 · 160 citations

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