The evaluation of Ovulen 50 mcg. as oral contraceptive.
D000328:Adult; D000367:Age Factors; D002584:Cervix Uteri / Q000473:pathology; D004338:Drug Combinations; D004341:Drug Evaluation; D005040:Ethynodiol Diacetate / Q000009:adverse effects; D005260:Female; D006801:Humans; D008599:Menstruation Disturbances / Q000209:etiology; D008656:Mestranol / Q000009:adverse effects; D011247:Pregnancy; D013924:Thrombophlebitis / Q000209:etiology; D014717:Vertigo / Q000209:etiology
D004338:Drug Combinations; D005040:Ethynodiol Diacetate; D008656:Mestranol