title: The dynamic structure of rabbit blastocyst coverings. I. Transformation during regular preimplantation development.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000648:ultrastructure*; D010064:Embryo Implantation; D005260:Female; D008854:Microscopy, Electron; D009028:Morula; D009088:Mucoproteins / Q000032:analysis; D011817:Rabbits / Q000033:anatomy & histology*; D013997:Time Factors
chemical_list: D009088:Mucoproteins