Estrogen-deprivation headaches.
D002986:Clinical Trials as Topic; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003677:Deficiency Diseases / Q000150:complications; D004967:Estrogens; D004997:Ethinyl Estradiol / Q000008:administration & dosage; D005260:Female; D006261:Headache / Q000188:drug therapy / Q000209:etiology*; D006801:Humans
D003276:Contraceptives, Oral; D004967:Estrogens; D004997:Ethinyl Estradiol