title: Medicare claims show remarkable variations by region, hospital ownership, and teaching status.
mesh_terms: D003365:Costs and Cost Analysis; D005102:Health Expenditures / Q000706:statistics & numerical data; D006784:Hospitals, Teaching / Q000191:economics*; D006801:Humans; D007349:Insurance, Health, Reimbursement / Q000191:economics*; D006278:Medicare / Q000191:economics*; D010067:Ownership; D014481:United States