1. Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
2. Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
3. Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland
4. Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, Maryland
5. Associate Editor, JAMA Cardiology