title: Cefoperazone versus combination antibiotic therapy of hospital-acquired pneumonia.
authors: L
authors: L
authors: Chelluri
mesh_terms: D000900:Anti-Bacterial Agents / Q000008:administration & dosage*; D002438:Cefoperazone / Q000627:therapeutic use*; D003428:Cross Infection / Q000188:drug therapy*; D004359:Drug Therapy, Combination; D006801:Humans; D011014:Pneumonia / Q000188:drug therapy*
chemical_list: D000900:Anti-Bacterial Agents; D002438:Cefoperazone