[Risk of an unwanted pregnancy following a single unprotected coitus; observations concerning the current hormonal postcoital contraceptive methods].
Doppenberg
H J
HJ
D003282:Contraceptives, Postcoital, Hormonal / Q000008:administration & dosage; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D008722:Methods
D003282:Contraceptives, Postcoital, Hormonal