"Missed pill" conception: fact or fiction?
D003276:Contraceptives, Oral / Q000008:administration & dosage*; D003277:Contraceptives, Oral, Combined / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D010060:Ovulation / Q000187:drug effects
D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined