title: Heavyweight hospitals build strength from within. Columbia, Tenet concentrate on core groups of hospitals.
authors.forename: B
authors.initials: B
authors.lastname: Kirchheimer
mesh_terms: D003363:Cost Control; D019981:Health Care Sector / Q000639:trends; D006273:Health Facility Merger / Q000639:trends; D006777:Hospitals, Proprietary / Q000191:economics / Q000458:organization & administration*; D009096:Multi-Institutional Systems / Q000191:economics / Q000458:organization & administration*; D014481:United States