title: Regional differences in the numerical particle distribution in the plasma membrane of a molluscan egg.
mesh_terms: D002462:Cell Membrane / Q000648:ultrastructure; D005260:Female; D005614:Freeze Fracturing; D008855:Microscopy, Electron, Scanning; D008974:Mollusca / Q000166:cytology*; D010063:Ovum / Q000648:ultrastructure*