...S&P Global Ratings revised its outlook to stable from positive and affirmed its '##' rating on Main Line Health System (MLH), Pa.'s $188 million series 2010A and 2012A fixed-rate bonds issued by various authorities. Main Line Health System is the parent company of Main Line Health and was formerly known as Jefferson Health System. At the same time, S&P Global Ratings assigned its '##' rating to Chester County Health and Educational Facilities Authority's $105.5 million series 2017A fixed-rate bonds issued for Main Line Health System. The outlook is stable. Bond proceeds will be used to expand Lankenau Medical Center's emergency department and for a major expansion and renovation project underway at Bryn Mawr Hospital. This rating also assesses $33 million of proposed bank placed debt, which, along with a portion of the 2017A bonds, will be used to partially refinance series 2010A bonds. The revision to a stable outlook from positive reflects lower than expected fiscal 2017 year to date...