title: An optimal zone of colistin activity with Serratia marcescens.
mesh_terms: D000362:Agar; D001431:Bacteriological Techniques; D003091:Colistin / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D012706:Serratia marcescens / Q000187:drug effects* / Q000302:isolation & purification
chemical_list: D000362:Agar; D003091:Colistin