...S&P Global Ratings has affirmed its '##' 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 issuers' 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 'A-1+' and 'A-1' short-term components of the affirmed ratings reflect the short-term ratings on the various standby bond purchase agreement (SBPA) providers, as well as our assessment of Mayo Clinic's self-liquidity and its procedures for providing the funds in a timely manner. We withdrew the rating on the series 2000A-C bonds to ## because they were redeemed. The long-term rating on Mayo Clinic reflects a stellar enterprise profile as one of the country's leading health systems. Mayo Clinic has a diverse group of operating assets, though it relies on its Rochester,...