ARE, CELL, CELLULAR, CRYOFIXATION, CRYOFIXED, DENSELY-CLUSTERED, DON, E, E-FACE, ECTOPLASMIC, ELECTRON, FACE, FAWCETT, FRACTURE, FRACTURED, FREEZE, FREEZE-FRACTURE, FREEZE-FRACTURED, HISTOLOGY, IMAGING, MEDICAL, MICROGRAPH, MICROGRAPHY, MICROSCOPY, NUCLEAR, NUCLEUS, OF, P-FACE, PORE, PORES, PROTOPLASMIC, SCIENCE, TEM, THE, TRANSMISSION,