HMO or PPO: picking a managed-care plan.
D003258:Consumer Behavior / Q000706:statistics & numerical data*; D006264:Health Benefit Plans, Employee; D006279:Health Maintenance Organizations / Q000706:statistics & numerical data*; D006297:Health Services Accessibility / Q000706:statistics & numerical data; D006801:Humans; D011243:Preferred Provider Organizations / Q000706:statistics & numerical data*; D014481:United States