1Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas
2Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston
3Novartis Pharmaceuticals, East Hanover, NJ
4Institut de Cardiologie de Montréal, Université de Montréal, Montreal
5Department of Molecular and Clinical Medicine, University of Gothenburg, Gothenburg, Sweden
6National Heart and Lung Institute, Imperial College London, London
7Medical University of South Carolina and Ralph H. Johnson Veterans Affairs Medical Center, Charleston