1. Department of Medicine, Division of Cardiology, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
2. Department of Biostatistics, Epidemiology & Informatics, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
3. Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
4. Department of Medicine Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
5. Department of Cardiology, Aarhus University, Aarhus, Denmark
6. Department of Cardiology, Medical University of South Carolina, South Carolina, USA
7. Department of Neurology, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, Pennsylvania, USA