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Penetration of Human Spermatozoa into the Human Zona Pellucida and the Zona-Free Hamster Egg: A Study of Fertile Donors and Infertile Patients

Zona-free Hamster EggInfertilityAndrologyFertilityReproductive HealthGameteGynecologyHuman SpermatozoaSemen AnalysisReproductive BiologyPublic HealthMedicineFertile DonorsFertilisationHuman Reproduction