title: Health plans--eligibility decisions--preemption. DiFelice v. Aetna U.S. Healthcare.
mesh_terms: D004608:Eligibility Determination / Q000331:legislation & jurisprudence*; D019461:Employee Retirement Income Security Act; D006264:Health Benefit Plans, Employee; D006279:Health Maintenance Organizations; D007345:Insurance Claim Review / Q000331:legislation & jurisprudence*; D014481:United States