(Editor's Note: Earlier today, this article was published under the wrong spelling of the organization name. It is being reissued under the correct name.) NEW YORK (Standard&Poor's) Jan. 18, 2002--Standard&Poor's today assigned its single-'A' rating to UnitedHealth Group Inc.'s (United Health) $400 million, five-year, 5.2% fixed-rate senior unsecured notes, which are due Jan. 17, 2007. The proceeds of the offering will be used for general corporate purposes, which may include working capital, share repurchases, repayment of short-term debt, and business acquisitions. Major Rating Factors: -- Very strong business position. United Health is one of the largest health care organizations in the U.S., providing services and benefits to more than 16.5 million members. The organization experienced strong