title: Studies on the nature of the block to polyspermy in rabbit ova.
mesh_terms: D000818:Animals; D005260:Female; D005306:Fertilization; D006821:Hyaluronoglucosaminidase / Q000494:pharmacology; D008858:Microscopy, Phase-Contrast; D010063:Ovum / Q000201:enzymology*; D011817:Rabbits; D013997:Time Factors; D014361:Trypsin Inhibitors / Q000378:metabolism*
chemical_list: D014361:Trypsin Inhibitors; D006821:Hyaluronoglucosaminidase