title: [Electron microscopic observations of epidermal cells separated by colloidal silica density gradient centrifugation].
mesh_terms: D000818:Animals; D002469:Cell Separation / Q000379:methods*; D002499:Centrifugation, Density Gradient; D003102:Colloids; D004817:Epidermis / Q000648:ultrastructure*; D006168:Guinea Pigs; D008855:Microscopy, Electron, Scanning; D012822:Silicon Dioxide
chemical_list: D003102:Colloids; D012822:Silicon Dioxide