Health plans. In this survey, familiarity breeds content.
D003625:Data Collection; D006279:Health Maintenance Organizations / Q000592:standards / Q000706:statistics & numerical data; D007348:Insurance, Health / Q000592:standards / Q000706:statistics & numerical data*; D008329:Managed Care Programs / Q000592:standards / Q000706:statistics & numerical data*; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D011243:Preferred Provider Organizations / Q000592:standards / Q000706:statistics & numerical data; D011639:Public Opinion; D014481:United States