The rating on Michigan State Hospital Finance Authority's variable-rate refunding and revenue bonds (Trinity Health Credit Group) series 2000E has been raised to 'AAA/A-1' from 'AA-/A-1+' due to the substitution of the liquidity facilities provided by JP Morgan Chase Bank and Northern Trust Co., Chicago, Ill., with a liquidity facility provided by Bank One N.A., Chicago, Ill. and the acquisition of AMBAC insurance policy.