Emergency contraception.
Morris
B J
BJ
Department of Nursing, College of Health and Human Services, Southeast Missouri State University, Cape Girardeau, USA.
Young
C
C
D003075:Coitus; D003267:Contraception / Q000266:history; D003277:Contraceptives, Oral, Combined; D004630:Emergencies; D045166:Estradiol Congeners; D004997:Ethinyl Estradiol; D005260:Female; D049673:History, 20th Century; D006801:Humans; D016912:Levonorgestrel; D014481:United States
D003277:Contraceptives, Oral, Combined; D045166:Estradiol Congeners; D004997:Ethinyl Estradiol; D016912:Levonorgestrel