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A multicentred phase III comparative study of two hormonal contraceptive preparations given once-a-month by intramuscular injection: I. Contraceptive efficacy and side effects

ContraceptionContraceptive UseContraceptive ImplantsFertilityInfertilityHormonal ContraceptiveContraceptive DiscontinuationReproductive HealthGynecologyIntramuscular InjectionSide EffectsContraceptive UptakeHormonal Male ContraceptionHormonal Contraceptive PreparationsPublic HealthMedicineAnesthesiologyReproductive Endocrinology