title: Invited letter: the evolving model of health care in the United States: system change is not enough.
authors.forename: Randell K
authors.initials: RK
authors.lastname: Wexler
mesh_terms: D003695:Delivery of Health Care / Q000191:economics / Q000458:organization & administration*; D006801:Humans; D007256:Information Systems / Q000191:economics / Q000458:organization & administration*; D017146:Models, Organizational; D018802:Patient-Centered Care / Q000191:economics / Q000458:organization & administration*; D011320:Primary Health Care / Q000458:organization & administration; D014481:United States