| Abstract: | Standard&Poor's Ratings Services affirmed its 'AA+/A-1+' rating on Illinois Finance Authority's variable-rate demand hospital revenue bonds series 2008A, issued on behalf of Northwestern Memorial Hospital (NMH), based on a substitute standby bond purchase agreement (SBPA) provided by The Northern Trust Co. (AA/A-1+). The short-term rating component of the rating for the bond represents the likelihood of payment of tenders. On May 20, 2009, the Northern Trust SBPA will replace a SBPA provided by JPMorgan Chase Bank (AA-/A-1+). The negative outlook is based on the outlook of the obligor. USPF Criteria: "LOC-Backed Municipal Debt," July 2, 2007 USPF Criteria: "Bank Liquidity Facilities," June 22, 2007 USPF Criteria: "Standby Bond Purchase Agreement Automatic Termination Events," April 11, 2008
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