Survey documents HMO and POS utilization rates, use of prevention measures.
D003625:Data Collection; D006279:Health Maintenance Organizations / Q000706:statistics & numerical data*; D011243:Preferred Provider Organizations / Q000706:statistics & numerical data*; D011314:Preventive Health Services / Q000706:statistics & numerical data; D011320:Primary Health Care / Q000706:statistics & numerical data; D020379:Risk Adjustment; D014481:United States; D014600:Utilization Review