NEW YORK--(BUSINESS WIRE)--Fitch Ratings has affirmed the 'A-' rating on the $153.33 million Series 2009A bonds issued by the Lycoming County Authority on behalf of Susquehanna Health System (SHS or Susquehanna). The Rating Outlook is Stable. SECURITY The bonds are secured by a gross revenues pledge of the obligated group and mortgages on Williamsport Regional Medical Center and Divine Providence Hospital. KEY RATING DRIVERS DOMINANT MARKET SHARE: Susquehanna Health System is the dominant provi