Standard&Poor's Ratings Services revised the outlook to positive and affirmed its dual 'A+/A-1' rating on the $150 million series 1991 and 1994 debt and its long-term rating on the $200 million series 2003 debt issued by Long Beach, Calif.; the California Health Facilities Finance Authority; and the California Statewide Communities Development Authority; respectively, on behalf of Memorial Health Services (MHS). The outlook revision and rating affirmation are based on sustained strong operating results and a solid balance sheet. MHS has increased liquidity and reduced leverage while making significant capital project investments. More specifically, the long-term rating reflects: Continuation of sound operating results, with a solid operating margin of 3.3% and a profit margin of 5.7% in fiscal 2007