Aetna CEO defends merger with Humana in antitrust trial
December 09, 2016 at 19:50 PM EST
WASHINGTON, Dec 9 (Reuters) - Aetna Inc's chief executive denied on Friday that its withdrawal from some Obamacare exchanges was in retaliation for government efforts to halt its merger with Humana Inc, as he sought to convince a federal judge to approve the deal.