Antiprogestin Drugs: Ethical, Legal and Medical Issues. Proceedings of a conference. December 1991.
D000021:Abortifacient Agents, Steroidal; D017277:Drug Approval / Q000331:legislation & jurisprudence*; D004989:Ethics; D005260:Female; D006801:Humans; D011374:Progesterone / Q000037:antagonists & inhibitors*; D014481:United States
D000021:Abortifacient Agents, Steroidal; D011374:Progesterone