title: A third neuroglial cell type. An electron microscopic study.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D003594:Cytoplasmic Granules; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D009457:Neuroglia; D009900:Optic Nerve / Q000166:cytology* / Q000196:embryology; D051381:Rats