title: Medicare-risk retreats. Cigna to exit six HMO urban markets; Humana slows marketing.
authors.forename: C
authors.initials: C
authors.lastname: Rauber
mesh_terms: D000368:Aged; D002017:Budgets; D019981:Health Care Sector / Q000639:trends; D006279:Health Maintenance Organizations / Q000191:economics / Q000706:statistics & numerical data / Q000639:trends*; D006801:Humans; D008389:Marketing of Health Services / Q000639:trends; D020398:Medicare Part C / Q000331:legislation & jurisprudence / Q000639:trends*; D011907:Rate Setting and Review; D020414:Risk Sharing, Financial; D014481:United States