title: Freeze-drying methods for the scanning electron-microscopical study of the protozoon Spirostomum ambiguum and the statocyst of the cephalopod mollusc Loligo vulgaris.
mesh_terms: D000818:Animals; D002923:Cilia; D016798:Ciliophora / Q000166:cytology*; D004847:Epithelial Cells; D005612:Freeze Drying; D006652:Histological Techniques; D008722:Methods; D008854:Microscopy, Electron; D008974:Mollusca / Q000166:cytology*