[Fertility regulation using triphasic administration of ethinyl estradiol and levonorgestrel in comparison with the 30 plus 150 mcg fixed dose regime (Author's transl)].
Zador
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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
D003276:Contraceptives, Oral
Amenorrhea; Central Nervous System Effects; Clinical Research; Contraception; Contraceptive Methods; Family Planning; Gastrointestinal Effects; Headache; Menstruation Disorders; Metrorrhagia; Nausea; Oral Contraceptives; Research Methodology