'Plan B:' how it works. Science shows it is not an abortifacient.
Reznik
Sandra E
SE
St. John's University, Queens, NY, USA.
D000019:Abortifacient Agents; D003271:Contraceptive Agents, Female / Q000627:therapeutic use*; D005260:Female; D005306:Fertilization / Q000502:physiology; D006801:Humans; D016912:Levonorgestrel / Q000627:therapeutic use*
D000019:Abortifacient Agents; D003271:Contraceptive Agents, Female; D016912:Levonorgestrel