1 Department of Cardiology, Maastricht University Medical Center, Maastricht, The Netherlands; Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands.
2 Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida. Electronic address: cooper.leslie@mayo.edu.
3 Department of Cardiology, Maastricht University Medical Center, Maastricht, The Netherlands; Department of Cardiovascular Research, University of Leuven, Belgium; Netherlands Heart Institute, Utrecht, The Netherlands.