A low-dosage contraceptive in Public Health clinics.
D000328:Adult; D000367:Age Factors; D002641:Chicago; D003153:Community Health Services; D004338:Drug Combinations; D004997:Ethinyl Estradiol / Q000008:administration & dosage* / Q000009:adverse effects / Q000494:pharmacology; D005193:Family Planning Services; D005260:Female; D006801:Humans; D008598:Menstruation / Q000187:drug effects; D009644:Norgestrel / Q000008:administration & dosage* / Q000009:adverse effects / Q000494:pharmacology; D010298:Parity; D014621:Vagina / Q000166:cytology / Q000187:drug effects
D004338:Drug Combinations; D009644:Norgestrel; D004997:Ethinyl Estradiol