Editor's Note: missed pill correspondence.
D004967:Estrogens / Q000008:administration & dosage*; D004997:Ethinyl Estradiol / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D010349:Patient Compliance; D006113:United Kingdom
D004967:Estrogens; D004997:Ethinyl Estradiol