...SAN FRANCISCO (S&P Global Ratings) Aug. 30, 2018--S&P Global Ratings has assigned its '##' long-term rating to Rochester, Minn.'s $200 million series 2018 health care facilities revenue bonds issued for the Mayo Clinic. S&P Global Ratings also affirmed its outstanding '##' long-term ratings on debt issued for Mayo Clinic directly and through various issuers. We also affirmed our '##/A-1+' and '##/A-1' dual ratings on various debt issued for, or guaranteed by, the Mayo Clinic, as well as our 'A-1+' rating on Mayo Clinic's commercial paper (CP) program and various bonds that are in CP mode. The outlook on all ratings is stable where applicable. "The long-term rating on Mayo Clinic reflects a stellar enterprise profile as one of the country's leading health care organizations including many top rankings across the country," said S&P Global Ratings credit analyst Martin Arrick. Mayo Clinic has a diverse group of operating assets, though it relies on its Rochester, Minn. flagship campus--two...