title: A preliminary report on the contraceptive use of subdermal implants containing norethindrone.
mesh_terms: D000293:Adolescent; D000328:Adult; D001835:Body Weight; D003692:Delayed-Action Preparations; D004341:Drug Evaluation; D005260:Female; D005298:Fertility / Q000187:drug effects*; D006801:Humans; D008598:Menstruation / Q000187:drug effects; D009640:Norethindrone / Q000008:administration & dosage / Q000494:pharmacology*; D010298:Parity; D011247:Pregnancy
chemical_list: D003692:Delayed-Action Preparations; D009640:Norethindrone