The forest for the trees.
D003422:Critical Care; D003695:Delivery of Health Care / Q000191:economics / Q000639:trends*; D005102:Health Expenditures / Q000639:trends; D006801:Humans; D007349:Insurance, Health, Reimbursement / Q000639:trends; D013677:Medical Laboratory Science / Q000639:trends; D009732:Nursing Care; D014481:United States