title: Risk contracting is a regional phenomenon, data show.
mesh_terms: D002204:Capitation Fee / Q000706:statistics & numerical data; D006125:Group Practice, Prepaid / Q000191:economics / Q000706:statistics & numerical data; D019981:Health Care Sector; D006279:Health Maintenance Organizations / Q000191:economics / Q000706:statistics & numerical data*; D007193:Independent Practice Associations / Q000191:economics / Q000706:statistics & numerical data*; D020414:Risk Sharing, Financial / Q000706:statistics & numerical data*; D014481:United States