title: The use of zona-free animal ova as a test-system for the assessment of the fertilizing capacity of human spermatozoa.
mesh_terms: D000177:Acrosome / Q000502:physiology; D000818:Animals; D006224:Cricetinae / Q000196:embryology; D005260:Female; D005306:Fertilization; D006801:Humans; D066298:In Vitro Techniques; D008297:Male; D010063:Ovum / Q000502:physiology*; D013075:Sperm Capacitation; D013084:Sperm-Ovum Interactions; D013094:Spermatozoa / Q000502:physiology*