The new world of health care.
D000368:Aged; D004469:Economics, Hospital / Q000639:trends; D006801:Humans; D006278:Medicare; D011445:Prospective Payment System / Q000191:economics*; D011787:Quality of Health Care / Q000639:trends*; D012051:Reimbursement Mechanisms / Q000191:economics*; D014481:United States