title: Cleavage of human ova in vitro.
mesh_terms: D000818:Animals; D002455:Cell Division; D046508:Culture Techniques; D005260:Female; D005306:Fertilization; D000882:Haplorhini; D006801:Humans; D008297:Male; D008722:Methods; D010063:Ovum / Q000254:growth & development*; D013094:Spermatozoa