title: Copayment dispute won by HMO members. Corsini v. United Healthcare Services, Inc.
mesh_terms: D017047:Cost Sharing / Q000331:legislation & jurisprudence*; D019461:Employee Retirement Income Security Act; D005251:Fees, Medical / Q000331:legislation & jurisprudence; D006279:Health Maintenance Organizations / Q000191:economics / Q000331:legislation & jurisprudence*; D006801:Humans; D014481:United States