title: Roerig extends antibiotic guarantee.
mesh_terms: D002438:Cefoperazone / Q000627:therapeutic use*; D003953:Diagnosis-Related Groups; D004345:Drug Industry / Q000191:economics*; D004469:Economics, Hospital; D006801:Humans; D006278:Medicare / Q000191:economics; D014481:United States
chemical_list: D002438:Cefoperazone