1 Department of Cardiology, University Hospital Heidelberg, Heidelberg, Germany.
2 DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, University of Heidelberg, Heidelberg, Germany.
3 HCR, Heidelberg Center for Heart Rhythm Disorders, University Hospital Heidelberg, Heidelberg, Germany.
4 Department of Cardiology, University Hospital Heidelberg, Heidelberg, Germany. Constanze.Schmidt@med.uni-heidelberg.de.
5 DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, University of Heidelberg, Heidelberg, Germany. Constanze.Schmidt@med.uni-heidelberg.de.
6 HCR, Heidelberg Center for Heart Rhythm Disorders, University Hospital Heidelberg, Heidelberg, Germany. Constanze.Schmidt@med.uni-heidelberg.de.