title: Many hospitals report problems cutting DRG 89 treatment costs.
mesh_terms: D000368:Aged; D003365:Costs and Cost Analysis; D003953:Diagnosis-Related Groups; D005376:Financial Management; D005377:Financial Management, Hospital; D006801:Humans; D010998:Pleurisy / Q000191:economics*; D011014:Pneumonia / Q000191:economics*; D014481:United States