Estrogens and postcoital contraception.
Notelovitz
M
M
D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003278:Contraceptives, Oral, Hormonal; D003281:Contraceptives, Postcoital; D005193:Family Planning Services; D012106:Research; D013997:Time Factors
D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003278:Contraceptives, Oral, Hormonal; D003281:Contraceptives, Postcoital
Contraception; Contraceptive Agents; Contraceptive Agents, Estrogen; Contraceptive Agents, Female; Contraceptive Agents, Postcoital; Family Planning; Summary Report; Time Factors