NEW YORK (Standard&Poor's) Oct. 25, 2005-- Standard&Poor's Ratings Services assigned its 'BBB+' rating, and stable outlook, to South Dakota Health and Educational Facilities Authority's $5.295 million series 2005 revenue refunding bonds, issued for Huron Regional Medical Center Inc. The bonds are scheduled to sell near Nov. 15. The rating agency also affirmed its 'BBB+' rating, and stable outlook, on Huron Regional Medical Center's debt outstanding. The rating reflects Huron's sound business position as a critical access provider and sound operating performance. Additional rating factors include Huron's market share within the primary service area of 65%, restored operating profitability in fiscal 2005, and maintenance of overall balance sheet strength. Credit concerns remain regarding Huron's declining volumes, which