title: Chaotic, shifting relationships of purchasers, plans, and providers.
authors.affiliation: Henry Ford Health System, Detroit, USA.
authors.forename: G L
authors.initials: GL
authors.lastname: Warden
mesh_terms: D000046:Academic Medical Centers / Q000191:economics; D003258:Consumer Behavior; D016208:Databases, Factual; D003695:Delivery of Health Care / Q000191:economics / Q000639:trends; D004501:Education, Medical; D006264:Health Benefit Plans, Employee / Q000592:standards; D006279:Health Maintenance Organizations; D007255:Information Services; D007348:Insurance, Health / Q000639:trends*; D017149:Private Sector; D014481:United States