title: Vertical integration: exploration of a popular strategic concept.
mesh_terms: D000046:Academic Medical Centers / Q000458:organization & administration; D006279:Health Maintenance Organizations / Q000458:organization & administration; D006297:Health Services Accessibility / Q000191:economics; D006739:Hospital Administration / Q000639:trends*; D006754:Hospital Restructuring; D006777:Hospitals, Proprietary / Q000458:organization & administration; D006784:Hospitals, Teaching / Q000458:organization & administration; D009096:Multi-Institutional Systems / Q000458:organization & administration; D010820:Physicians; D012040:Regional Health Planning / Q000639:trends*; D014481:United States