title: Market spider. A new tool measures the maturity of managed care markets.
mesh_terms: D002391:Catchment Area, Health / Q000191:economics; D004465:Economic Competition; D008329:Managed Care Programs / Q000145:classification / Q000458:organization & administration* / Q000706:statistics & numerical data; D008389:Marketing of Health Services / Q000379:methods*; D010934:Planning Techniques; D014481:United States