UPDATE 1-UnitedHealth backs Gilead's Harvoni as preferred hepatitis C treatment
January 28, 2015 at 16:53 PM EST
Jan 28 (Reuters) - UnitedHealth Group Inc, the largest U.S. health insurer, on Wednesday backed Gilead Sciences Inc's Harvoni as the preferred hepatitis C treatment on its 2015 commercial drug coverage list, another victory for Gilead over competitor AbbVie Inc.
