Standard&Poor's Ratings Services has assigned its 'AA' long-term rating to Mayo Clinic, Minn.'s $300 million series 2012B taxable revenue bonds. Standard&Poor's also affirmed its 'AA' long-term ratings and its 'AA/A-1+' and 'AA/A-1' dual ratings on various issuers' debt issued for, or guaranteed by, the Mayo Clinic. The 'A-1+' and 'A-1' short-term components of these ratings reflect the short-term ratings on the various standby bond purchase agreement (SBPA) providers, as well as Mayo Clinic's own self-liquidity. The rating outlook on the Mayo Clinic is stable. Since we raised Mayo Clinic's long term ratings to 'AA' from 'AA-' in April 2011, Mayo Clinic has performed extremely well operationally, with excellent performance in 2011 from all of its major
