Sperm penetration through the zona pellucida of immature hamster oocytes.
D000818:Animals; D006063:Chorionic Gonadotropin / Q000494:pharmacology; D006224:Cricetinae; D005260:Female; D006801:Humans; D008297:Male; D009865:Oocytes; D010063:Ovum; D013081:Sperm Motility / Q000187:drug effects
D006063:Chorionic Gonadotropin