Article: Senate to probe Aetna, Cigna, United Healthcare, Quest, LabCorp for alleged billion-dollar fraud Posted on November 19, 2011 by dougmailman http://www.fiercehealthcare.com/story/senate-probe-aetna-cigna-united-healthcare-quest-lab-corp-alleged-billion-d/2011-11-09?utm_campaign=twitter-Share-NL Posted by: Douglas Mailman Share this:TwitterFacebookLike this:Like Loading... Related