SAN FRANCISCO (Standard&Poor's) Feb. 7, 2011--Standard&Poor's Ratings Services revised the outlook to stable from negative on the long-term rating and underlying rating (SPUR) on California Educational Facilities Authority and California Infrastructure and Economic Development Bank's debt outstanding for the University of Southern California (USC). "The outlook revision is based on our view of the university's maintenance of strong operating performance despite the acquisition of two hospitals from Tenet in 2009 and the limited negative effect the hospitals have had on overall university financial performance," said Standard&Poor's credit analyst Jessica Matsumori. We expect this effect to grow smaller with time as the hospitals become stronger. At the same time, we affirmed the 'AA+' long-term rating