Randomised controlled trial of levonorgestrel versus the Yuzpe regimen of combined oral contraceptives for emergency contraception

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Mifepristone (RU 486) Compared with High-Dose Estrogen and Progestogen for Emergency Postcoital Contraception

Anna Glasier, K.J. Thong, Maria H Dewar et al. · New England Journal of Medicine · 1992 · 311 citations · Full text

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A prospective randomized comparison of levonorgestrel with the Yuzpe regimen in post-coital contraception

Pak Chung Ho, Marie Kwan · Human Reproduction · 1993 · 266 citations

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Sample size requirements for evaluating a conservative therapy.

Rafał Makuch, Richard Simon · PubMed · 1978 · 231 citations

Medicine, Internal Medicine, Comparative Effectiveness Research +15

Comparison of Yuzpe regimen, danazol, and mifepristone (RU486) in oral postcoital contraception.

A.M.C. Webb, JasW. Russell, Max Elstein · BMJ · 1992 · 215 citations · Full text

Medicine, Gynecology, Obstetrics +17