title: ERISA preemption clause bars application of any willing provider statute. CIGNA Healthplan of Louisiana, Inc. v. Louisiana.
mesh_terms: D003256:Community Participation; D003659:Decision Making, Organizational; D019461:Employee Retirement Income Security Act / Q000331:legislation & jurisprudence*; D006801:Humans; D007343:Insurance Carriers; D019458:Insurance Coverage / Q000331:legislation & jurisprudence; D008145:Louisiana; D011243:Preferred Provider Organizations / Q000331:legislation & jurisprudence* / Q000458:organization & administration; D014481:United States