Standard&Poor's Ratings Services raised the short-term component of the dual rating on Mayo Clinic, Minn.'s series 2000A bonds to 'A-1+', from 'A-1'. The long-term component of the rating remains 'AA-'. The upgrade of the short-term component of the rating reflects a substitution from a Morgan Stanley standby bond purchase agreement to self-liquidity supported by a $100 million line of credit from U.S. Bank N.A. The 'AA-' long-term component of the rating reflects the long-term credit strength of the Mayo Clinic while the 'A-1+' short-term component reflects the ability of Mayo Clinic to fund, from its own liquidity, any bonds that have been tendered, but not remarketed. Mayo Clinic demonstrates ample and sufficient liquidity and has the procedures necessary
