title: Centers of excellence: historic trends and future decisions.
authors.forename: P D
authors.initials: PD
authors.lastname: Walter
mesh_terms: D000046:Academic Medical Centers / Q000592:standards; D019985:Benchmarking; D014487:Centers for Medicare and Medicaid Services, U.S.; D019981:Health Care Sector / Q000639:trends; D006782:Hospitals, Special / Q000458:organization & administration / Q000592:standards*; D017146:Models, Organizational; D017063:Outcome Assessment, Health Care; D010934:Planning Techniques; D017410:Practice Guidelines as Topic; D012106:Research; D017749:Total Quality Management; D014481:United States