By the numbers. Insurers/managed care.
D006264:Health Benefit Plans, Employee / Q000706:statistics & numerical data / Q000639:trends; D019538:Health Care Surveys; D006801:Humans; D007348:Insurance, Health / Q000706:statistics & numerical data* / Q000639:trends; D008329:Managed Care Programs / Q000706:statistics & numerical data* / Q000639:trends; D020402:Medical Savings Accounts / Q000706:statistics & numerical data; D054524:Medicare Part D / Q000706:statistics & numerical data; D014481:United States