title: Contraceptive use--efficacy study utilizing Depo-Provera administered as an injection once every six months.
mesh_terms: D000085:Acetates; D000293:Adolescent; D000328:Adult; D001794:Blood Pressure / Q000187:drug effects; D001835:Body Weight; D003692:Delayed-Action Preparations; D005069:Evaluation Studies as Topic; D005260:Female; D005298:Fertility / Q000187:drug effects; D006801:Humans; D008525:Medroxyprogesterone / Q000008:administration & dosage / Q000009:adverse effects / Q000494:pharmacology; D008599:Menstruation Disturbances; D010298:Parity; D011247:Pregnancy; D013997:Time Factors; D014626:Vaginal Smears
chemical_list: D000085:Acetates; D003692:Delayed-Action Preparations; D008525:Medroxyprogesterone