title: Shedding few tiers. Controversial plans are here to stay, insurers say.
authors.forename: Laura B
authors.initials: LB
authors.lastname: Benko
mesh_terms: D054598:Blue Cross Blue Shield Insurance Plans; D002140:California; D003258:Consumer Behavior / Q000191:economics*; D017047:Cost Sharing; D017721:Hospital Costs; D006761:Hospitals / Q000145:classification* / Q000706:statistics & numerical data; D008329:Managed Care Programs / Q000191:economics* / Q000639:trends; D008404:Massachusetts; D018803:Models, Economic