Rivaroxaban versus Warfarin in Nonvalvular Atrial FibrillationRosenstein, Robert M.D.Parra, David Pharm.D.Author informationWest Palm Beach Veterans Affairs Medical Center, West Palm Beach, FL [email protected]No potential conflict of interest relevant to this letter was reported.New England Journal of Medicine 365(24):p 2334, December 15, 2011.Copyright © 2011 Massachusetts Medical Society. All rights reserved.