NY -- Standard&Poor's CreditWire 8/11/98 – Standard&Poor's today assigned its double-'A'-minus rating to North Carolina Medical Care Commission's $203.4 million revenue bonds series 1998 due Sept. 15, 2028, issued for Pitt County Memorial Hospital. The bonds are scheduled to sell Aug. 19, 1998. The outlook is stable. In addition, Standard&Poor's affirmed its double-'A'-minus rating on the commission's $322.68 million of outstanding debt. The rating reflects market dominance, service essentiality, and a strong financial profile that offsets risks surrounding an aggressive and debt-funded strategic plan. The double-'A'-minus rating is affirmed on outstanding series 1995 bonds, although proceeds are expected to refund this issue at closing. Later this year, $84 million series 1998B bonds will likely