Emergency contraception.
D003277:Contraceptives, Oral, Combined / Q000008:administration & dosage*; D003281:Contraceptives, Postcoital / Q000008:administration & dosage*; D004349:Drug Packaging / Q000331:legislation & jurisprudence*; D005260:Female; D006801:Humans; D014481:United States; D014486:United States Food and Drug Administration