title: Providence Health Care System prepares to challenge proprietaries.
mesh_terms: D000413:Alaska; D002140:California; D002410:Catholicism; D003284:Contract Services; D005376:Financial Management; D006075:Governing Board / Q000458:organization & administration; D006739:Hospital Administration; D006755:Hospital Shared Services; D006777:Hospitals, Proprietary; D009922:Oregon; D014861:Washington