. Author manuscript; available in PMC: 2014 Dec 17.
Published in final edited form as: J Am Coll Cardiol. 2013 Sep 4;62(24):10.1016/j.jacc.2013.07.078. doi: 10.1016/j.jacc.2013.07.078
© 2013 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.