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A randomized double-blind study of the effects of two low-dose combined oral contraceptives on biochemical aspects Report from a seven-centred study

ContraceptionContraceptive UseSeven-centred StudyFertilityHormonal ContraceptiveOral ContraceptiveMedicineContraceptive DiscontinuationReproductive HealthGynecologyContraceptive UptakeSide EffectHormonal Male ContraceptionPublic HealthPharmacologyWomen's HealthBiochemical Aspects ReportRandomized Double-blind Study