Standard&Poor's Ratings Services confirmed its ratings on Maryland Health&Higher Educational Facilities Authority's series 2008A variable-rate demand obligation bonds (Johns Hopkins Health System Obligated Group), due to the bank facility being extended to June 30, 2013. The long-term rating is jointly based on the ratings on the obligor, Johns Hopkins Health System Obligated Group and the letter of credit (LOC) provider, PNC Bank N.A. Pittsburgh, assuming low correlation. The short-term component of the rating is based solely on rating of the LOC provider.