Standard&Poor's Ratings Services affirmed its 'AA/A-1+' rating on Rochester (Mayo Clinic), Minn.'s deals listed below due to the bank facilities being extended. Hospital variable-rate demand bonds (Mayo Foundation) series 2000B extended to Jan. 13, 2010. Hospital variable-rate demand bonds (Mayo Foundation) series 2000C extended to Jan. 13, 2010. Hospital variable-rate demand bonds (Mayo Foundation) series 2001A extended to Jan. 22, 2010. Hospital variable-rate demand bonds (Mayo Foundation) series 2001B extended to Jan. 22, 2010. Hospital variable-rate demand bonds (Mayo Foundation) series 2001C extended to Jan. 22, 2010. Hospital variable-rate demand bonds (Mayo Foundation) series 2001D extended to Jan. 22, 2010. Health care facilities variable-rate demand revenue bonds (Mayo Foundation) series 2008A extended to Jan. 30, 2010. Health care