Standard&Poor's Ratings Services affirmed its 'A-1' short-term rating on Maryland Health&Higher Educational Facilities Authority's (Johns Hopkins Health System Obligated Group) commercial paper notes series A, due to the bank facility being extended to April 30, 2012. The short-term rating is based on the rating on Bank of America N.A. USPF Criteria: Bank Liquidity Facilities, June 22, 2007