Challenge to Blues' tax-exemption seen as signal to healthcare industry.
D054598:Blue Cross Blue Shield Insurance Plans / Q000331:legislation & jurisprudence*; D007350:Insurance, Hospitalization / Q000331:legislation & jurisprudence*; D007357:Insurance, Physician Services / Q000331:legislation & jurisprudence*; D013660:Taxes / Q000331:legislation & jurisprudence*; D014481:United States