NY -- Standard&Poor's CreditWire 1/13/98 -- Standard&Poor's today assigned its double-'A'-minus/'A-1'-plus rating to Cuyahoga County, Ohio's $94.06 million bonds series 1998A and $45.94 million bonds series 1998B, issued for Cleveland Clinic Foundation. The outlook on the bonds is now positive. Standard&Poor's affirmed its ratings on the Cleveland Clinic Foundation's outstanding bonds as follows: -- Hospital revenue bonds series 1987, 1988A, 1989, and 1992 at double-'A'-minus; -- Hospital revenue bonds series 1996 B, 1997D ,and 1997C at double-'A'-minus/'A-1'-plus. The outlook on these bonds is revised to positive from stable. The unenhanced long-term rating on the Cuyahoga County bonds, issued on behalf of the Cleveland Clinic Foundation Health System's obligated group (CCF), reflects a strong and