title: A freeze-etch study of clustered nuclear pores.
mesh_terms: D000818:Animals; D002462:Cell Membrane; D002467:Cell Nucleus; D003058:Cockroaches; D005613:Freeze Etching; D006458:Hemolymph / Q000166:cytology; D007313:Insecta; D008317:Malpighian Tubules / Q000166:cytology; D008954:Models, Biological