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Increased progesterone/estradiol ratio in the late follicular phase could be related to low ovarian reserve in in vitro fertilization–embryo transfer cycles with a long gonadotropin-releasing hormone agonist

FertilityGynecologyFemale Reproductive SystemReproductive BiologyEmbryologyProgesterone/estradiol RatioOvarian CancerReproductive EndocrinologyLow Ovarian ReservePublic HealthEndocrinologyOvarian HormoneLate Follicular PhaseDevelopmental BiologyOogenesisUterine ReceptivityMedicineReproductive HormoneGonadotropin Biology