...Standard & Poor's Ratings Services affirmed its '##+' long-term rating and underlying rating (SPUR) and its '##+/A-1+' dual rating (various issuers and various modes) on all senior revenue bonds issued for Ascension Health Alliance, Mo. In addition, Standard & Poor's affirmed its '##' long-term rating on Ascension's series 2005A subordinated revenue bonds. The outlook on all ratings, where applicable, is stable. Ascension is the parent organization of a national health system (operating in 23 states and Washington, D.C.) consisting of 100 general acute care hospitals and more than $30 billion in total assets. As the largest private not-for-profit health system in the U.S., Ascension has unrivaled size and scale in the industry. Ascension is a true national practice, with central governance and consolidated service lines, both clinical and nonclinical. For example, Ascension has combined its 34 senior care ministries across the country into a single service line called Ascension Health Senior...