title: [Fertility regulation using triphasic administration of ethinyl estradiol and levonorgestrel in comparison with the 30 plus 150 mcg fixed dose regime (Author's transl)].
authors.forename: G
authors.initials: G
authors.lastname: Zador
mesh_terms: D000568:Amenorrhea; D002490:Central Nervous System; D003267:Contraception; D003276:Contraceptives, Oral; D004064:Digestive System; D005193:Family Planning Services; D006261:Headache; D008599:Menstruation Disturbances; D008796:Metrorrhagia; D009325:Nausea; D012106:Research
chemical_list: D003276:Contraceptives, Oral
keywords: Amenorrhea; Central Nervous System Effects; Clinical Research; Contraception; Contraceptive Methods; Family Planning; Gastrointestinal Effects; Headache; Menstruation Disorders; Metrorrhagia; Nausea; Oral Contraceptives; Research Methodology