Health plans react to changing Medicare managed care market; long-term outlook still positive.
D000368:Aged; D006299:Health Services for the Aged / Q000191:economics*; D006801:Humans; D008329:Managed Care Programs / Q000191:economics / Q000639:trends*; D020398:Medicare Part C / Q000331:legislation & jurisprudence*; D011243:Preferred Provider Organizations; D020400:Provider-Sponsored Organizations; D011907:Rate Setting and Review; D012051:Reimbursement Mechanisms; D014481:United States