title: Diagnosis-related groups. A critical assessment of the provision for comorbidity.
mesh_terms: D000043:Abstracting and Indexing; D000368:Aged; D001784:Blood Gas Analysis; D001900:Boston; D003953:Diagnosis-Related Groups; D004573:Electrolytes / Q000097:blood; D006745:Hospital Bed Capacity, 300 to 499; D006801:Humans; D007902:Length of Stay; D011445:Prospective Payment System
chemical_list: D004573:Electrolytes