|Vanguard Health Systems, Inc. (Vanguard) is an operator of healthcare delivery networks with presence in various urban and suburban markets. As of June 30, 2011, the Company had 26 acute care and specialty hospitals, which together with outpatient facilities and related businesses, allow it to provide a range of inpatient and outpatient services in the communities it serves. As of June 30, 2011, its hospitals had a total of 6,201 beds in the five locations: San Antonio, Metropolitan Phoenix, Metropolitan Chicago, Metropolitan Detroit and Masachusetts. On August 1, 2010, Vanguard purchased Westlake Hospital and West Suburban Medical Center in the western suburbs of Chicago, Illinois from Resurrection Health Care. Effective January 1, 2011, the Company purchased all of the assets of The Detroit Medical Center and certain of its affiliates, which assets consist of eight acute care and specialty hospitals in the Detroit, Michigan metropolitan area and related healthcare facilities.