[Studies on the effects of combined use of polymyxin B].
D000900:Anti-Bacterial Agents / Q000008:administration & dosage*; D004357:Drug Synergism; D004755:Enterobacteriaceae / Q000187:drug effects*; D011113:Polymyxins / Q000008:administration & dosage*
D000900:Anti-Bacterial Agents; D011113:Polymyxins