title: California & Columbia/HCA mega-deals.
mesh_terms: D002140:California; D003625:Data Collection; D019033:Delivery of Health Care, Integrated / Q000458:organization & administration*; D006269:Health Facilities, Proprietary / Q000458:organization & administration*; D006273:Health Facility Merger / Q000458:organization & administration*; D006279:Health Maintenance Organizations / Q000458:organization & administration; D006761:Hospitals / Q000706:statistics & numerical data; D006788:Hospitals, Voluntary / Q000639:trends; D008145:Louisiana; D009096:Multi-Institutional Systems / Q000458:organization & administration; D009825:Oklahoma