Ethinylestradiol and dl-Norgestrel as a Postcoital Contraceptive

Post coital contraception--A pilot study.

Yuzpe Aa, Thurlow Hj, Ibrahim Ramzy et al. · PubMed · 1974 · 197 citations

Contraceptive Use, Hormonal Contraceptive, Fertility +22

Interception: The use of postovulatory estrogens to prevent implantation

John McLean Morris, G. van Wagenen · American Journal of Obstetrics and Gynecology · 1973 · 141 citations

Infertility, Hormonal Contraceptive, Fertility +7

Probability of Pregnancy Resulting from a Single Unprotected Coitus

Christopher Tietze · Fertility and Sterility · 1960 · 97 citations

Contraception, Fertility, Maternal Complication +8

Postcoital contraception with D-norgestrel

Esteban Kesserü, Alfredo Larrañaga, Julio Freijanes Parada · Contraception · 1973 · 66 citations

Contraception, Hormonal Contraceptive, Sexual And Reproductive Health +8

The postcoital copper-T.

Jack Lippes, Tasneem Malik, Tatum Hj · PubMed · 1976 · 50 citations

Contraceptive Use, Hormonal Contraceptive, Fertility +22