Evaluation of male infertility by penetrability (or penetration assay) of the human spermatozoa through zona-free hamster ova.
D000818:Animals; D006224:Cricetinae; D005260:Female; D006801:Humans; D007248:Infertility, Male / Q000175:diagnosis*; D008297:Male; D010063:Ovum; D013076:Sperm Count; D013081:Sperm Motility; D013094:Spermatozoa / Q000502:physiology; D015044:Zona Pellucida