title: Net new enrollees in Medicare risk plans, 1998, by month.
mesh_terms: D003625:Data Collection; D006801:Humans; D008329:Managed Care Programs / Q000706:statistics & numerical data*; D006278:Medicare / Q000706:statistics & numerical data* / Q000639:trends; D020414:Risk Sharing, Financial / Q000706:statistics & numerical data*; D014481:United States