title: Proposal for improved techniques in electron microscopy.
mesh_terms: D001345:Autoradiography; D004583:Electrons; D004655:Emulsions; D007536:Isomerism; D008670:Metals; D008722:Methods; D008854:Microscopy, Electron / Q000295:instrumentation*; D010781:Photography; D011108:Polymers
chemical_list: D004655:Emulsions; D008670:Metals; D011108:Polymers