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Summary
No abstract available in PubMed .
Keywords:
AmericasBiologyContraceptionContraceptive MethodsDelivery Of Health CareDeveloped CountriesEndocrine SystemFamily PlanningFollicle Stimulating HormoneGonadotropinsGonadotropins, PituitaryHealthHealth PersonnelHormone Replacement TherapyHormonesMeasurementMenopauseNorth AmericaNorthern AmericaOral ContraceptivesPhysiciansPhysiologyReproductionResearch MethodologyTreatmentUnited States