Gauge the effect of co-pays on utilization, PMPM rates.
D002204:Capitation Fee / Q000706:statistics & numerical data*; D017047:Cost Sharing / Q000706:statistics & numerical data*; D008329:Managed Care Programs / Q000191:economics* / Q000706:statistics & numerical data; D011907:Rate Setting and Review; D014481:United States; D014600:Utilization Review