title: The 49 largest voluntary multihospital systems.
mesh_terms: D003284:Contract Services; D006739:Hospital Administration; D006761:Hospitals / Q000600:supply & distribution*; D006781:Hospitals, Satellite / Q000458:organization & administration; D006788:Hospitals, Voluntary / Q000600:supply & distribution*; D010067:Ownership; D013223:Statistics as Topic; D014481:United States