title: Polystyrene spheres in electron microscopy.
mesh_terms: D007840:Latex; D008433:Mathematics; D008722:Methods; D008854:Microscopy, Electron / Q000592:standards; D008863:Microspheres; D010984:Platinum; D011137:Polystyrenes
chemical_list: D007840:Latex; D011137:Polystyrenes; D010984:Platinum