title: Electron microscopic studies on mode of action of polymyxin.
mesh_terms: D002463:Cell Membrane Permeability / Q000187:drug effects; D003091:Colistin / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects*; D008854:Microscopy, Electron; D011113:Polymyxins / Q000494:pharmacology*; D011550:Pseudomonas aeruginosa / Q000187:drug effects*
chemical_list: D011113:Polymyxins; D003091:Colistin