title: Subnormal zona pellucida change in parthenogenetic mouse embryos.
mesh_terms: D000818:Animals; D004558:Electric Stimulation; D005260:Female; D051379:Mice; D008809:Mice, Inbred C3H; D010063:Ovum / Q000254:growth & development*; D010312:Parthenogenesis; D011402:Pronase; D013997:Time Factors
chemical_list: D011402:Pronase