This excerpt taken from the UNH 8-K filed Dec 19, 2006.
HCA Inc. is a holding company whose affiliates own and operate hospitals and related health care entities. The term affiliates includes direct and indirect subsidiaries of HCA Inc. and partnerships and joint ventures in which such subsidiaries are partners. At September 30, 2006, these affiliates owned and operated 172 hospitals, 95 freestanding surgery centers and facilities which provided extensive outpatient and ancillary services. Affiliates of HCA Inc. are also partners in joint ventures that own and operate seven hospitals and nine freestanding surgery centers which are accounted for using the equity method. The Companys facilities are located in 21 states, England and Switzerland.