[1
]Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich,
Switzerland
[2
]Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
[3
]Division of Biostatistics, Epidemiology, Biostatistics and Prevention Institute, University
of Zurich, Zurich, Switzerland
[4
]Division of Cardiovascular Medicine, Keck School of Medicine, University of Southern
California, Los Angeles
[5
]Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota6Cardiac Centre,
St. George’s, University of London, London, England
[6
]Department of Cardiology, Leiden University Medical Centre, Leiden, the Netherlands