...CHICAGO (S&P Global Ratings) May 4, 2017--S&P Global Ratings raised its long-term rating and underlying rating (SPUR) to '##-' from 'A+' on the Illinois Finance Authority's series 2008A and 2008B fixed-rate bonds, issued for Ann & Robert H. Lurie Children's Hospital of Chicago (Lurie Children's Hospital, formerly Children's Memorial Hospital). At the same time, S&P Global Ratings assigned its '##-' long-term rating to the Authority's $133.13 million series 2017 fixed-rate bonds issued for Lurie Children's Hospital. Assured Guaranty Ltd. insures the series 2008A bonds. Children's Hospital of Chicago Medical Center is the parent organization for the overall system and we refer to the combined system in this report as Lurie Children's. The outlook is stable. "The rating action reflects our view of Lurie Children's strengthening financial profile and improving business position," said S&P Global Ratings credit analyst Suzie Desai. Proceeds from the series 2017 fixed-rate revenue bonds, along...