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Human chorionic gonadotropin β-subunit-like immunoreactive material in the plasma of women wearing an intrauterine progesterone contraceptive system

Hormonal ContraceptiveFertilityUterine ReceptivityReproductive HealthGynecologyMaternal HealthReproductive EndocrinologyFemale Reproductive SystemFemale Reproductive FunctionReproductive HormonePublic HealthEndocrinologyMedicineWomen's HealthGonadotropin Biology