Severity of illness and nursing intensity: going beyond DRGs.
D003365:Costs and Cost Analysis; D003953:Diagnosis-Related Groups; D006785:Hospitals, University; D006801:Humans; D007902:Length of Stay; D009519:New York City; D009738:Nursing Service, Hospital / Q000191:economics*; D010361:Patients / Q000145:classification*; D012720:Severity of Illness Index