title: THE LONG-TERM USE OF OVULEN FOR CONTRACEPTION.
mesh_terms: D000568:Amenorrhea; D003267:Contraception; D003270:Contraceptive Agents; D003276:Contraceptives, Oral; D005040:Ethynodiol Diacetate; D005260:Female; D006801:Humans; D008599:Menstruation Disturbances; D008656:Mestranol; D014116:Toxicology
chemical_list: D003270:Contraceptive Agents; D003276:Contraceptives, Oral; D005040:Ethynodiol Diacetate; C018467:Bisecurin I; D008656:Mestranol
keywords: AMENORRHEA; CONTRACEPTIVES, ORAL; ETHYNODIOL DIACETATE; MENSTRUATION DISORDERS; MESTRANOL; TOXICOLOGIC REPORT