By the numbers. Et cetera--10 largest healthcare associations.
D019981:Health Care Sector / Q000458:organization & administration*; D019538:Health Care Surveys; D006801:Humans; D007343:Insurance Carriers / Q000191:economics / Q000706:statistics & numerical data; D009938:Organizations / Q000191:economics / Q000706:statistics & numerical data*; D012952:Societies / Q000191:economics / Q000706:statistics & numerical data; D014481:United States