title: Progesterone antagonists on the horizon.
authors.affiliation: Center for Biomedical Research, Population Council, New York, New York 10021.
authors.forename: I M
authors.initials: IM
authors.lastname: Spitz
authors.forename: C W
authors.initials: CW
authors.lastname: Bardin
mesh_terms: D000019:Abortifacient Agents / Q000494:pharmacology*; D000021:Abortifacient Agents, Steroidal / Q000494:pharmacology*; D000818:Animals; D003280:Contraceptives, Oral, Synthetic / Q000494:pharmacology*; D004963:Estrenes / Q000494:pharmacology*; D005260:Female; D006801:Humans; D015735:Mifepristone; D011372:Progestins / Q000037:antagonists & inhibitors*
chemical_list: D000019:Abortifacient Agents; D000021:Abortifacient Agents, Steroidal; D003280:Contraceptives, Oral, Synthetic; D004963:Estrenes; D011372:Progestins; D015735:Mifepristone