title: Experiences with three cephalosporin antibiotics in respiratory system infections.
mesh_terms: D002511:Cephalosporins / Q000627:therapeutic use*; D004756:Enterobacteriaceae Infections / Q000188:drug therapy*; D006801:Humans; D012141:Respiratory Tract Infections / Q000188:drug therapy*
chemical_list: D002511:Cephalosporins