1. Duke University Medical Center, Durham, North Carolina
2. Department of Neurology, Medical University of Gdansk, Gdansk, Poland
3. Duke Clinical Research Institute, Durham, North Carolina4Deputy Editor for Statistics, JAMA Cardiology
4. Gdansk University of Technology, Gdansk, Poland
5. Department of Cardiology, Medical University of Warsaw, Warsaw, Poland
6. Department of Internal Medicine, Hypertension and Vascular Disease, Medical University of Warsaw, Warsaw, Poland
7. Duke University Medical Center, Durham, North Carolina3Duke Clinical Research Institute, Durham, North Carolina