title: CLINICAL EFFECTIVENESS OF A LOW-DOSE PROGESTIN-ESTROGEN COMBINATION.
mesh_terms: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D004967:Estrogens; D005260:Female; D006801:Humans; D008656:Mestranol; D009640:Norethindrone; D011372:Progestins; D013223:Statistics as Topic; D014116:Toxicology; D016896:Treatment Outcome
chemical_list: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D004967:Estrogens; D011372:Progestins; D008656:Mestranol; D009640:Norethindrone
keywords: CONTRACEPTIVES, ORAL; ESTROGENS; MESTRANOL; NORETHINDRONE; STATISTICS; TOXICOLOGIC REPORT