[Letter: Pregnancy prevention].
D003267:Contraception; D003281:Contraceptives, Postcoital; D004054:Diethylstilbestrol / Q000008:administration & dosage; D004997:Ethinyl Estradiol / Q000008:administration & dosage; D005260:Female; D006801:Humans; D011247:Pregnancy
D003281:Contraceptives, Postcoital; D004997:Ethinyl Estradiol; D004054:Diethylstilbestrol
Verhinderung einer Schwangerschaft