title: Highmark, Independence join merger frenzy. Pa. Blues deal OK could take two years; insurer would control half of state's market.
authors: Michael
authors: M
authors: Romano
mesh_terms: D054598:Blue Cross Blue Shield Insurance Plans / Q000191:economics / Q000458:organization & administration*; D033161:Government Regulation; D019981:Health Care Sector / Q000458:organization & administration* / Q000639:trends; D007343:Insurance Carriers / Q000191:economics / Q000331:legislation & jurisprudence; D009935:Organizational Affiliation / Q000191:economics* / Q000639:trends; D010414:Pennsylvania; D015143:Philadelphia