title: The engine of choice.
authors.forename: J D
authors.initials: JD
authors.lastname: Beckham
mesh_terms: D000367:Age Factors; D002755:Choice Behavior; D019033:Delivery of Health Care, Integrated / Q000191:economics / Q000458:organization & administration*; D006801:Humans; D008329:Managed Care Programs / Q000458:organization & administration; D010358:Patient Participation; D010817:Physician-Patient Relations; D014481:United States