Who needs a period?
Gorman
C
C
D003276:Contraceptives, Oral / Q000008:administration & dosage / Q000009:adverse effects; D005260:Female; D006801:Humans; D008597:Menstrual Cycle; D010358:Patient Participation; D012307:Risk Factors; D014481:United States
D003276:Contraceptives, Oral