The pill parallels the placenta. A method of teaching oral contraception.
D003276:Contraceptives, Oral / Q000494:pharmacology / Q000502:physiology*; D004501:Education, Medical; D005260:Female; D012739:Gonadal Steroid Hormones / Q000502:physiology; D006266:Health Education; D006801:Humans; D007194:India; D010920:Placenta / Q000502:physiology*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000503:physiopathology; D013663:Teaching
D003276:Contraceptives, Oral; D012739:Gonadal Steroid Hormones