Data watch. Managed care penetration differs by market.
D002391:Catchment Area, Health / Q000706:statistics & numerical data; D003625:Data Collection; D006279:Health Maintenance Organizations / Q000706:statistics & numerical data; D008329:Managed Care Programs / Q000706:statistics & numerical data*; D011243:Preferred Provider Organizations / Q000706:statistics & numerical data; D014481:United States