title: Ultrastructural changes of erythrocyte membranes isolated with colloidal silica solution (Ludox).
mesh_terms: D002462:Cell Membrane / Q000187:drug effects; D002499:Centrifugation, Density Gradient; D004912:Erythrocytes / Q000166:cytology* / Q000187:drug effects; D006801:Humans; D008855:Microscopy, Electron, Scanning; D012822:Silicon Dioxide / Q000494:pharmacology*
chemical_list: D012822:Silicon Dioxide